21081740

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4603}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 44474640

約数和(自身を除く): 23392900

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 4603, 9206, 18412, 23015, 46030, 92060, 1054087, 2108174, 4216348, 5270435, 10540870, 21081740]

約数ペア:

[(1, 21081740), (2, 10540870), (4, 5270435), (5, 4216348), (10, 2108174), (20, 1054087), (229, 92060), (458, 46030), (916, 23015), (1145, 18412), (2290, 9206), (4580, 4603)]