18854238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 24046242

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 47, 74, 78, 94, 111, 139, 141, 222, 278, 282, 417, 481, 611, 834, 962, 1222, 1443, 1739, 1807, 1833, 2886, 3478, 3614, 3666, 5143, 5217, 5421, 6533, 10286, 10434, 10842, 13066, 15429, 19599, 22607, 30858, 39198, 45214, 66859, 67821, 84929, 133718, 135642, 169858, 200577, 241721, 254787, 401154, 483442, 509574, 725163, 1450326, 3142373, 6284746, 9427119, 18854238]

約数ペア:

[(1, 18854238), (2, 9427119), (3, 6284746), (6, 3142373), (13, 1450326), (26, 725163), (37, 509574), (39, 483442), (47, 401154), (74, 254787), (78, 241721), (94, 200577), (111, 169858), (139, 135642), (141, 133718), (222, 84929), (278, 67821), (282, 66859), (417, 45214), (481, 39198), (611, 30858), (834, 22607), (962, 19599), (1222, 15429), (1443, 13066), (1739, 10842), (1807, 10434), (1833, 10286), (2886, 6533), (3478, 5421), (3614, 5217), (3666, 5143)]