21238574

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 37691136

約数和(自身を除く): 16452562

約数列:

[1, 2, 7, 14, 41, 82, 163, 227, 287, 326, 454, 574, 1141, 1589, 2282, 3178, 6683, 9307, 13366, 18614, 37001, 46781, 65149, 74002, 93562, 130298, 259007, 518014, 1517041, 3034082, 10619287, 21238574]

約数ペア:

[(1, 21238574), (2, 10619287), (7, 3034082), (14, 1517041), (41, 518014), (82, 259007), (163, 130298), (227, 93562), (287, 74002), (326, 65149), (454, 46781), (574, 37001), (1141, 18614), (1589, 13366), (2282, 9307), (3178, 6683)]