18078879

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1409}}^1$

素因数の和:1479

約数の個数: 32

約数和(自身を含む): 30320640

約数和(自身を除く): 12241761

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1409, 1833, 4227, 4277, 9863, 12831, 18317, 29589, 54951, 66223, 128219, 198669, 384657, 463561, 860899, 1390683, 2582697, 6026293, 18078879]

約数ペア:

[(1, 18078879), (3, 6026293), (7, 2582697), (13, 1390683), (21, 860899), (39, 463561), (47, 384657), (91, 198669), (141, 128219), (273, 66223), (329, 54951), (611, 29589), (987, 18317), (1409, 12831), (1833, 9863), (4227, 4277)]