21299709

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{757}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 29034432

約数和(自身を除く): 7734723

約数列:

[1, 3, 83, 113, 249, 339, 757, 2271, 9379, 28137, 62831, 85541, 188493, 256623, 7099903, 21299709]

約数ペア:

[(1, 21299709), (3, 7099903), (83, 256623), (113, 188493), (249, 85541), (339, 62831), (757, 28137), (2271, 9379)]