21071167

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 23671872

約数和(自身を除く): 2600705

約数列:

[1, 13, 37, 71, 481, 617, 923, 2627, 8021, 22829, 34151, 43807, 296777, 569491, 1620859, 21071167]

約数ペア:

[(1, 21071167), (13, 1620859), (37, 569491), (71, 296777), (481, 43807), (617, 34151), (923, 22829), (2627, 8021)]