21332765

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 5105635

約数列:

[1, 5, 53, 79, 265, 395, 1019, 4187, 5095, 20935, 54007, 80501, 270035, 402505, 4266553, 21332765]

約数ペア:

[(1, 21332765), (5, 4266553), (53, 402505), (79, 270035), (265, 80501), (395, 54007), (1019, 20935), (4187, 5095)]