21753909

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{757}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 32794112

約数和(自身を除く): 11040203

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 757, 927, 2271, 3193, 6813, 9579, 23467, 28737, 70401, 77971, 211203, 233913, 701739, 2417101, 7251303, 21753909]

約数ペア:

[(1, 21753909), (3, 7251303), (9, 2417101), (31, 701739), (93, 233913), (103, 211203), (279, 77971), (309, 70401), (757, 28737), (927, 23467), (2271, 9579), (3193, 6813)]