9920729

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2659}}^1$

素因数の和:2720

約数の個数: 16

約数和(自身を含む): 12512640

約数和(自身を除く): 2591911

約数列:

[1, 7, 13, 41, 91, 287, 533, 2659, 3731, 18613, 34567, 109019, 241969, 763133, 1417247, 9920729]

約数ペア:

[(1, 9920729), (7, 1417247), (13, 763133), (41, 241969), (91, 109019), (287, 34567), (533, 18613), (2659, 3731)]