20381348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{2347}}^1$

素因数の和:2531

約数の個数: 24

約数和(自身を含む): 38657472

約数和(自身を除く): 18276124

約数列:

[1, 2, 4, 13, 26, 52, 167, 334, 668, 2171, 2347, 4342, 4694, 8684, 9388, 30511, 61022, 122044, 391949, 783898, 1567796, 5095337, 10190674, 20381348]

約数ペア:

[(1, 20381348), (2, 10190674), (4, 5095337), (13, 1567796), (26, 783898), (52, 391949), (167, 122044), (334, 61022), (668, 30511), (2171, 9388), (2347, 8684), (4342, 4694)]