28181722

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:933

約数の個数: 16

約数和(自身を含む): 42910272

約数和(自身を除く): 14728550

約数列:

[1, 2, 137, 163, 274, 326, 631, 1262, 22331, 44662, 86447, 102853, 172894, 205706, 14090861, 28181722]

約数ペア:

[(1, 28181722), (2, 14090861), (137, 205706), (163, 172894), (274, 102853), (326, 86447), (631, 44662), (1262, 22331)]