21554640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:626

約数の個数: 160

約数和(自身を含む): 78744960

約数和(自身を除く): 57190320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 102, 108, 120, 135, 136, 144, 153, 170, 180, 204, 216, 240, 255, 270, 272, 306, 340, 360, 408, 432, 459, 510, 540, 587, 612, 680, 720, 765, 816, 918, 1020, 1080, 1174, 1224, 1360, 1530, 1761, 1836, 2040, 2160, 2295, 2348, 2448, 2935, 3060, 3522, 3672, 4080, 4590, 4696, 5283, 5870, 6120, 7044, 7344, 8805, 9180, 9392, 9979, 10566, 11740, 12240, 14088, 15849, 17610, 18360, 19958, 21132, 23480, 26415, 28176, 29937, 31698, 35220, 36720, 39916, 42264, 46960, 49895, 52830, 59874, 63396, 70440, 79245, 79832, 84528, 89811, 99790, 105660, 119748, 126792, 140880, 149685, 158490, 159664, 179622, 199580, 211320, 239496, 253584, 269433, 299370, 316980, 359244, 399160, 422640, 449055, 478992, 538866, 598740, 633960, 718488, 798320, 898110, 1077732, 1197480, 1267920, 1347165, 1436976, 1796220, 2155464, 2394960, 2694330, 3592440, 4310928, 5388660, 7184880, 10777320, 21554640]

約数ペア:

[(1, 21554640), (2, 10777320), (3, 7184880), (4, 5388660), (5, 4310928), (6, 3592440), (8, 2694330), (9, 2394960), (10, 2155464), (12, 1796220), (15, 1436976), (16, 1347165), (17, 1267920), (18, 1197480), (20, 1077732), (24, 898110), (27, 798320), (30, 718488), (34, 633960), (36, 598740), (40, 538866), (45, 478992), (48, 449055), (51, 422640), (54, 399160), (60, 359244), (68, 316980), (72, 299370), (80, 269433), (85, 253584), (90, 239496), (102, 211320), (108, 199580), (120, 179622), (135, 159664), (136, 158490), (144, 149685), (153, 140880), (170, 126792), (180, 119748), (204, 105660), (216, 99790), (240, 89811), (255, 84528), (270, 79832), (272, 79245), (306, 70440), (340, 63396), (360, 59874), (408, 52830), (432, 49895), (459, 46960), (510, 42264), (540, 39916), (587, 36720), (612, 35220), (680, 31698), (720, 29937), (765, 28176), (816, 26415), (918, 23480), (1020, 21132), (1080, 19958), (1174, 18360), (1224, 17610), (1360, 15849), (1530, 14088), (1761, 12240), (1836, 11740), (2040, 10566), (2160, 9979), (2295, 9392), (2348, 9180), (2448, 8805), (2935, 7344), (3060, 7044), (3522, 6120), (3672, 5870), (4080, 5283), (4590, 4696)]