81661218

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{191693}}^1$

素因数の和:191769

約数の個数: 16

約数和(自身を含む): 165623616

約数和(自身を除く): 83962398

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 191693, 383386, 575079, 1150158, 13610203, 27220406, 40830609, 81661218]

約数ペア:

[(1, 81661218), (2, 40830609), (3, 27220406), (6, 13610203), (71, 1150158), (142, 575079), (213, 383386), (426, 191693)]