18631405

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1297}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 25653672

約数和(自身を除く): 7022267

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1297, 2873, 6485, 14365, 16861, 22049, 84305, 110245, 219193, 286637, 1095965, 1433185, 3726281, 18631405]

約数ペア:

[(1, 18631405), (5, 3726281), (13, 1433185), (17, 1095965), (65, 286637), (85, 219193), (169, 110245), (221, 84305), (845, 22049), (1105, 16861), (1297, 14365), (2873, 6485)]