21255156

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15139}}^1$

素因数の和:15165

約数の個数: 48

約数和(自身を含む): 59348800

約数和(自身を除く): 38093644

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15139, 30278, 45417, 60556, 90834, 136251, 181668, 196807, 272502, 393614, 408753, 545004, 590421, 787228, 817506, 1180842, 1635012, 1771263, 2361684, 3542526, 5313789, 7085052, 10627578, 21255156]

約数ペア:

[(1, 21255156), (2, 10627578), (3, 7085052), (4, 5313789), (6, 3542526), (9, 2361684), (12, 1771263), (13, 1635012), (18, 1180842), (26, 817506), (27, 787228), (36, 590421), (39, 545004), (52, 408753), (54, 393614), (78, 272502), (108, 196807), (117, 181668), (156, 136251), (234, 90834), (351, 60556), (468, 45417), (702, 30278), (1404, 15139)]