31688205

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 52669056

約数和(自身を除く): 20980851

約数列:

[1, 3, 5, 15, 43, 73, 129, 215, 219, 365, 645, 673, 1095, 2019, 3139, 3365, 9417, 10095, 15695, 28939, 47085, 49129, 86817, 144695, 147387, 245645, 434085, 736935, 2112547, 6337641, 10562735, 31688205]

約数ペア:

[(1, 31688205), (3, 10562735), (5, 6337641), (15, 2112547), (43, 736935), (73, 434085), (129, 245645), (215, 147387), (219, 144695), (365, 86817), (645, 49129), (673, 47085), (1095, 28939), (2019, 15695), (3139, 10095), (3365, 9417)]