21002490

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 112

約数和(自身を含む): 58864608

約数和(自身を除く): 37862118

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 67, 81, 86, 90, 129, 134, 135, 162, 201, 215, 243, 258, 270, 335, 387, 402, 405, 430, 486, 603, 645, 670, 729, 774, 810, 1005, 1161, 1206, 1215, 1290, 1458, 1809, 1935, 2010, 2322, 2430, 2881, 3015, 3483, 3618, 3645, 3870, 5427, 5762, 5805, 6030, 6966, 7290, 8643, 9045, 10449, 10854, 11610, 14405, 16281, 17286, 17415, 18090, 20898, 25929, 27135, 28810, 31347, 32562, 34830, 43215, 48843, 51858, 52245, 54270, 62694, 77787, 81405, 86430, 97686, 104490, 129645, 155574, 156735, 162810, 233361, 244215, 259290, 313470, 388935, 466722, 488430, 700083, 777870, 1166805, 1400166, 2100249, 2333610, 3500415, 4200498, 7000830, 10501245, 21002490]

約数ペア:

[(1, 21002490), (2, 10501245), (3, 7000830), (5, 4200498), (6, 3500415), (9, 2333610), (10, 2100249), (15, 1400166), (18, 1166805), (27, 777870), (30, 700083), (43, 488430), (45, 466722), (54, 388935), (67, 313470), (81, 259290), (86, 244215), (90, 233361), (129, 162810), (134, 156735), (135, 155574), (162, 129645), (201, 104490), (215, 97686), (243, 86430), (258, 81405), (270, 77787), (335, 62694), (387, 54270), (402, 52245), (405, 51858), (430, 48843), (486, 43215), (603, 34830), (645, 32562), (670, 31347), (729, 28810), (774, 27135), (810, 25929), (1005, 20898), (1161, 18090), (1206, 17415), (1215, 17286), (1290, 16281), (1458, 14405), (1809, 11610), (1935, 10854), (2010, 10449), (2322, 9045), (2430, 8643), (2881, 7290), (3015, 6966), (3483, 6030), (3618, 5805), (3645, 5762), (3870, 5427)]