21807436

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 45351936

約数和(自身を除く): 23544500

約数列:

[1, 2, 4, 7, 14, 28, 47, 73, 94, 146, 188, 227, 292, 329, 454, 511, 658, 908, 1022, 1316, 1589, 2044, 3178, 3431, 6356, 6862, 10669, 13724, 16571, 21338, 24017, 33142, 42676, 48034, 66284, 74683, 96068, 115997, 149366, 231994, 298732, 463988, 778837, 1557674, 3115348, 5451859, 10903718, 21807436]

約数ペア:

[(1, 21807436), (2, 10903718), (4, 5451859), (7, 3115348), (14, 1557674), (28, 778837), (47, 463988), (73, 298732), (94, 231994), (146, 149366), (188, 115997), (227, 96068), (292, 74683), (329, 66284), (454, 48034), (511, 42676), (658, 33142), (908, 24017), (1022, 21338), (1316, 16571), (1589, 13724), (2044, 10669), (3178, 6862), (3431, 6356)]