21000836220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89449}}^1$

素因数の和:89524

約数の個数: 192

約数和(自身を含む): 74056012800

約数和(自身を除く): 53055176580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 43, 52, 60, 65, 70, 78, 84, 86, 91, 105, 129, 130, 140, 156, 172, 182, 195, 210, 215, 258, 260, 273, 301, 364, 390, 420, 430, 455, 516, 546, 559, 602, 645, 780, 860, 903, 910, 1092, 1118, 1204, 1290, 1365, 1505, 1677, 1806, 1820, 2236, 2580, 2730, 2795, 3010, 3354, 3612, 3913, 4515, 5460, 5590, 6020, 6708, 7826, 8385, 9030, 11180, 11739, 15652, 16770, 18060, 19565, 23478, 33540, 39130, 46956, 58695, 78260, 89449, 117390, 178898, 234780, 268347, 357796, 447245, 536694, 626143, 894490, 1073388, 1162837, 1252286, 1341735, 1788980, 1878429, 2325674, 2504572, 2683470, 3130715, 3488511, 3756858, 3846307, 4651348, 5366940, 5814185, 6261430, 6977022, 7513716, 7692614, 8139859, 9392145, 11538921, 11628370, 12522860, 13954044, 15385228, 16279718, 17442555, 18784290, 19231535, 23077842, 23256740, 24419577, 26924149, 32559436, 34885110, 37568580, 38463070, 40699295, 46155684, 48839154, 50001991, 53848298, 57694605, 69770220, 76926140, 80772447, 81398590, 97678308, 100003982, 107696596, 115389210, 122097885, 134620745, 150005973, 161544894, 162797180, 200007964, 230778420, 244195770, 250009955, 269241490, 300011946, 323089788, 350013937, 403862235, 488391540, 500019910, 538482980, 600023892, 700027874, 750029865, 807724470, 1000039820, 1050041811, 1400055748, 1500059730, 1615448940, 1750069685, 2100083622, 3000119460, 3500139370, 4200167244, 5250209055, 7000278740, 10500418110, 21000836220]

約数ペア:

[(1, 21000836220), (2, 10500418110), (3, 7000278740), (4, 5250209055), (5, 4200167244), (6, 3500139370), (7, 3000119460), (10, 2100083622), (12, 1750069685), (13, 1615448940), (14, 1500059730), (15, 1400055748), (20, 1050041811), (21, 1000039820), (26, 807724470), (28, 750029865), (30, 700027874), (35, 600023892), (39, 538482980), (42, 500019910), (43, 488391540), (52, 403862235), (60, 350013937), (65, 323089788), (70, 300011946), (78, 269241490), (84, 250009955), (86, 244195770), (91, 230778420), (105, 200007964), (129, 162797180), (130, 161544894), (140, 150005973), (156, 134620745), (172, 122097885), (182, 115389210), (195, 107696596), (210, 100003982), (215, 97678308), (258, 81398590), (260, 80772447), (273, 76926140), (301, 69770220), (364, 57694605), (390, 53848298), (420, 50001991), (430, 48839154), (455, 46155684), (516, 40699295), (546, 38463070), (559, 37568580), (602, 34885110), (645, 32559436), (780, 26924149), (860, 24419577), (903, 23256740), (910, 23077842), (1092, 19231535), (1118, 18784290), (1204, 17442555), (1290, 16279718), (1365, 15385228), (1505, 13954044), (1677, 12522860), (1806, 11628370), (1820, 11538921), (2236, 9392145), (2580, 8139859), (2730, 7692614), (2795, 7513716), (3010, 6977022), (3354, 6261430), (3612, 5814185), (3913, 5366940), (4515, 4651348), (5460, 3846307), (5590, 3756858), (6020, 3488511), (6708, 3130715), (7826, 2683470), (8385, 2504572), (9030, 2325674), (11180, 1878429), (11739, 1788980), (15652, 1341735), (16770, 1252286), (18060, 1162837), (19565, 1073388), (23478, 894490), (33540, 626143), (39130, 536694), (46956, 447245), (58695, 357796), (78260, 268347), (89449, 234780), (117390, 178898)]