21398663

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{991}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 25331712

約数和(自身を除く): 3933049

約数列:

[1, 11, 13, 143, 151, 991, 1661, 1963, 10901, 12883, 21593, 141713, 149641, 1646051, 1945333, 21398663]

約数ペア:

[(1, 21398663), (11, 1945333), (13, 1646051), (143, 149641), (151, 141713), (991, 21593), (1661, 12883), (1963, 10901)]