21987043

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{271}}^1$

素因数の和:442

約数の個数: 12

約数和(自身を含む): 24070368

約数和(自身を除く): 2083325

約数列:

[1, 13, 79, 271, 1027, 3523, 6241, 21409, 81133, 278317, 1691311, 21987043]

約数ペア:

[(1, 21987043), (13, 1691311), (79, 278317), (271, 81133), (1027, 21409), (3523, 6241)]