21330104

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{71}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 43876080

約数和(自身を除く): 22545976

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 71, 94, 136, 142, 188, 284, 376, 568, 799, 1207, 1598, 2209, 2414, 3196, 3337, 4418, 4828, 6392, 6674, 8836, 9656, 13348, 17672, 26696, 37553, 56729, 75106, 113458, 150212, 156839, 226916, 300424, 313678, 453832, 627356, 1254712, 2666263, 5332526, 10665052, 21330104]

約数ペア:

[(1, 21330104), (2, 10665052), (4, 5332526), (8, 2666263), (17, 1254712), (34, 627356), (47, 453832), (68, 313678), (71, 300424), (94, 226916), (136, 156839), (142, 150212), (188, 113458), (284, 75106), (376, 56729), (568, 37553), (799, 26696), (1207, 17672), (1598, 13348), (2209, 9656), (2414, 8836), (3196, 6674), (3337, 6392), (4418, 4828)]