12840561

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 19859840

約数和(自身を除く): 7019279

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 1231, 3477, 3693, 10431, 11079, 23389, 70167, 75091, 210501, 225273, 675819, 1426729, 4280187, 12840561]

約数ペア:

[(1, 12840561), (3, 4280187), (9, 1426729), (19, 675819), (57, 225273), (61, 210501), (171, 75091), (183, 70167), (549, 23389), (1159, 11079), (1231, 10431), (3477, 3693)]