1821991431

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{258109}}^1$

素因数の和:258306

約数の個数: 16

約数和(自身を含む): 2630657120

約数和(自身を除く): 808665689

約数列:

[1, 3, 13, 39, 181, 543, 2353, 7059, 258109, 774327, 3355417, 10066251, 46717729, 140153187, 607330477, 1821991431]

約数ペア:

[(1, 1821991431), (3, 607330477), (13, 140153187), (39, 46717729), (181, 10066251), (543, 3355417), (2353, 774327), (7059, 258109)]