19721572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1511}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 37340352

約数和(自身を除く): 17618780

約数列:

[1, 2, 4, 13, 26, 52, 251, 502, 1004, 1511, 3022, 3263, 6044, 6526, 13052, 19643, 39286, 78572, 379261, 758522, 1517044, 4930393, 9860786, 19721572]

約数ペア:

[(1, 19721572), (2, 9860786), (4, 4930393), (13, 1517044), (26, 758522), (52, 379261), (251, 78572), (502, 39286), (1004, 19643), (1511, 13052), (3022, 6526), (3263, 6044)]