18567016

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 39000960

約数和(自身を除く): 20433944

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 403, 443, 676, 806, 886, 1352, 1612, 1772, 3224, 3544, 5239, 5759, 10478, 11518, 13733, 20956, 23036, 27466, 41912, 46072, 54932, 74867, 109864, 149734, 178529, 299468, 357058, 598936, 714116, 1428232, 2320877, 4641754, 9283508, 18567016]

約数ペア:

[(1, 18567016), (2, 9283508), (4, 4641754), (8, 2320877), (13, 1428232), (26, 714116), (31, 598936), (52, 357058), (62, 299468), (104, 178529), (124, 149734), (169, 109864), (248, 74867), (338, 54932), (403, 46072), (443, 41912), (676, 27466), (806, 23036), (886, 20956), (1352, 13733), (1612, 11518), (1772, 10478), (3224, 5759), (3544, 5239)]