21655029

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 33306624

約数和(自身を除く): 11651595

約数列:

[1, 3, 11, 23, 33, 69, 103, 253, 277, 309, 759, 831, 1133, 2369, 3047, 3399, 6371, 7107, 9141, 19113, 26059, 28531, 70081, 78177, 85593, 210243, 313841, 656213, 941523, 1968639, 7218343, 21655029]

約数ペア:

[(1, 21655029), (3, 7218343), (11, 1968639), (23, 941523), (33, 656213), (69, 313841), (103, 210243), (253, 85593), (277, 78177), (309, 70081), (759, 28531), (831, 26059), (1133, 19113), (2369, 9141), (3047, 7107), (3399, 6371)]