21460719

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17321}}^1$

素因数の和:17390

約数の個数: 16

約数和(自身を含む): 33258240

約数和(自身を除く): 11797521

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17321, 51963, 121247, 363741, 1021939, 3065817, 7153573, 21460719]

約数ペア:

[(1, 21460719), (3, 7153573), (7, 3065817), (21, 1021939), (59, 363741), (177, 121247), (413, 51963), (1239, 17321)]