20156487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{977}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 30286704

約数和(自身を除く): 10130217

約数列:

[1, 3, 13, 23, 39, 69, 299, 529, 897, 977, 1587, 2931, 6877, 12701, 20631, 22471, 38103, 67413, 292123, 516833, 876369, 1550499, 6718829, 20156487]

約数ペア:

[(1, 20156487), (3, 6718829), (13, 1550499), (23, 876369), (39, 516833), (69, 292123), (299, 67413), (529, 38103), (897, 22471), (977, 20631), (1587, 12701), (2931, 6877)]