1640343887

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{68539}}^1$

素因数の和:68822

約数の個数: 16

約数和(自身を含む): 2026590720

約数和(自身を除く): 386246833

約数列:

[1, 7, 13, 91, 263, 1841, 3419, 23933, 68539, 479773, 891007, 6237049, 18025757, 126180299, 234334841, 1640343887]

約数ペア:

[(1, 1640343887), (7, 234334841), (13, 126180299), (91, 18025757), (263, 6237049), (1841, 891007), (3419, 479773), (23933, 68539)]