21623095

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3109}}^1$

素因数の和:3234

約数の個数: 16

約数和(自身を含む): 28213920

約数和(自身を除く): 6590825

約数列:

[1, 5, 13, 65, 107, 535, 1391, 3109, 6955, 15545, 40417, 202085, 332663, 1663315, 4324619, 21623095]

約数ペア:

[(1, 21623095), (5, 4324619), (13, 1663315), (65, 332663), (107, 202085), (535, 40417), (1391, 15545), (3109, 6955)]