21491302

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5927}}^1$

素因数の和:5980

約数の個数: 24

約数和(自身を含む): 38520144

約数和(自身を除く): 17028842

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5927, 11854, 41489, 82978, 219299, 290423, 438598, 580846, 1535093, 3070186, 10745651, 21491302]

約数ペア:

[(1, 21491302), (2, 10745651), (7, 3070186), (14, 1535093), (37, 580846), (49, 438598), (74, 290423), (98, 219299), (259, 82978), (518, 41489), (1813, 11854), (3626, 5927)]