21490116

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{26729}}^1$

素因数の和:26803

約数の個数: 24

約数和(自身を含む): 50893920

約数和(自身を除く): 29403804

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 26729, 53458, 80187, 106916, 160374, 320748, 1790843, 3581686, 5372529, 7163372, 10745058, 21490116]

約数ペア:

[(1, 21490116), (2, 10745058), (3, 7163372), (4, 5372529), (6, 3581686), (12, 1790843), (67, 320748), (134, 160374), (201, 106916), (268, 80187), (402, 53458), (804, 26729)]