28378428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181913}}^1$

素因数の和:181933

約数の個数: 24

約数和(自身を含む): 71310288

約数和(自身を除く): 42931860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 181913, 363826, 545739, 727652, 1091478, 2182956, 2364869, 4729738, 7094607, 9459476, 14189214, 28378428]

約数ペア:

[(1, 28378428), (2, 14189214), (3, 9459476), (4, 7094607), (6, 4729738), (12, 2364869), (13, 2182956), (26, 1091478), (39, 727652), (52, 545739), (78, 363826), (156, 181913)]