21136791

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{1453}}^1$

素因数の和:1842

約数の個数: 16

約数和(自身を含む): 30452576

約数和(自身を除く): 9315785

約数列:

[1, 3, 13, 39, 373, 1119, 1453, 4359, 4849, 14547, 18889, 56667, 541969, 1625907, 7045597, 21136791]

約数ペア:

[(1, 21136791), (3, 7045597), (13, 1625907), (39, 541969), (373, 56667), (1119, 18889), (1453, 14547), (4359, 4849)]