21399599

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 23761920

約数和(自身を除く): 2362321

約数列:

[1, 13, 67, 79, 311, 871, 1027, 4043, 5293, 20837, 24569, 68809, 270881, 319397, 1646123, 21399599]

約数ペア:

[(1, 21399599), (13, 1646123), (67, 319397), (79, 270881), (311, 68809), (871, 24569), (1027, 20837), (4043, 5293)]