19018675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 25640720

約数和(自身を除く): 6622045

約数列:

[1, 5, 13, 25, 65, 139, 325, 421, 695, 1807, 2105, 3475, 5473, 9035, 10525, 27365, 45175, 58519, 136825, 292595, 760747, 1462975, 3803735, 19018675]

約数ペア:

[(1, 19018675), (5, 3803735), (13, 1462975), (25, 760747), (65, 292595), (139, 136825), (325, 58519), (421, 45175), (695, 27365), (1807, 10525), (2105, 9035), (3475, 5473)]