81321967

素因数分解:

${\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 85833792

約数和(自身を除く): 4511825

約数列:

[1, 37, 61, 137, 263, 2257, 5069, 8357, 9731, 16043, 36031, 309209, 593591, 1333147, 2197891, 81321967]

約数ペア:

[(1, 81321967), (37, 2197891), (61, 1333147), (137, 593591), (263, 309209), (2257, 36031), (5069, 16043), (8357, 9731)]