81520404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{970481}}^1$

素因数の和:970495

約数の個数: 24

約数和(自身を含む): 217387968

約数和(自身を除く): 135867564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 970481, 1940962, 2911443, 3881924, 5822886, 6793367, 11645772, 13586734, 20380101, 27173468, 40760202, 81520404]

約数ペア:

[(1, 81520404), (2, 40760202), (3, 27173468), (4, 20380101), (6, 13586734), (7, 11645772), (12, 6793367), (14, 5822886), (21, 3881924), (28, 2911443), (42, 1940962), (84, 970481)]