21877658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 37791360

約数和(自身を除く): 15913702

約数列:

[1, 2, 11, 22, 29, 53, 58, 106, 319, 583, 638, 647, 1166, 1294, 1537, 3074, 7117, 14234, 16907, 18763, 33814, 34291, 37526, 68582, 206393, 377201, 412786, 754402, 994439, 1988878, 10938829, 21877658]

約数ペア:

[(1, 21877658), (2, 10938829), (11, 1988878), (22, 994439), (29, 754402), (53, 412786), (58, 377201), (106, 206393), (319, 68582), (583, 37526), (638, 34291), (647, 33814), (1166, 18763), (1294, 16907), (1537, 14234), (3074, 7117)]