28563865

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 38916864

約数和(自身を除く): 10352999

約数列:

[1, 5, 11, 31, 55, 121, 155, 341, 605, 1523, 1705, 3751, 7615, 16753, 18755, 47213, 83765, 184283, 236065, 519343, 921415, 2596715, 5712773, 28563865]

約数ペア:

[(1, 28563865), (5, 5712773), (11, 2596715), (31, 921415), (55, 519343), (121, 236065), (155, 184283), (341, 83765), (605, 47213), (1523, 18755), (1705, 16753), (3751, 7615)]