19851156

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1603

約数の個数: 72

約数和(自身を含む): 56076384

約数和(自身を除く): 36225228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1571, 2106, 3142, 3159, 4212, 4713, 6284, 6318, 9426, 12636, 14139, 18852, 20423, 28278, 40846, 42417, 56556, 61269, 81692, 84834, 122538, 127251, 169668, 183807, 245076, 254502, 367614, 381753, 509004, 551421, 735228, 763506, 1102842, 1527012, 1654263, 2205684, 3308526, 4962789, 6617052, 9925578, 19851156]

約数ペア:

[(1, 19851156), (2, 9925578), (3, 6617052), (4, 4962789), (6, 3308526), (9, 2205684), (12, 1654263), (13, 1527012), (18, 1102842), (26, 763506), (27, 735228), (36, 551421), (39, 509004), (52, 381753), (54, 367614), (78, 254502), (81, 245076), (108, 183807), (117, 169668), (156, 127251), (162, 122538), (234, 84834), (243, 81692), (324, 61269), (351, 56556), (468, 42417), (486, 40846), (702, 28278), (972, 20423), (1053, 18852), (1404, 14139), (1571, 12636), (2106, 9426), (3142, 6318), (3159, 6284), (4212, 4713)]