20307508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2621}}^1$

素因数の和:2787

約数の個数: 24

約数和(自身を含む): 38543400

約数和(自身を除く): 18235892

約数列:

[1, 2, 4, 13, 26, 52, 149, 298, 596, 1937, 2621, 3874, 5242, 7748, 10484, 34073, 68146, 136292, 390529, 781058, 1562116, 5076877, 10153754, 20307508]

約数ペア:

[(1, 20307508), (2, 10153754), (4, 5076877), (13, 1562116), (26, 781058), (52, 390529), (149, 136292), (298, 68146), (596, 34073), (1937, 10484), (2621, 7748), (3874, 5242)]