21915687

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:734

約数の個数: 16

約数和(自身を含む): 29767680

約数和(自身を除く): 7851993

約数列:

[1, 3, 101, 151, 303, 453, 479, 1437, 15251, 45753, 48379, 72329, 145137, 216987, 7305229, 21915687]

約数ペア:

[(1, 21915687), (3, 7305229), (101, 216987), (151, 145137), (303, 72329), (453, 48379), (479, 45753), (1437, 15251)]