21257612

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{1009}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 39026400

約数和(自身を除く): 17768788

約数列:

[1, 2, 4, 23, 46, 92, 229, 458, 916, 1009, 2018, 4036, 5267, 10534, 21068, 23207, 46414, 92828, 231061, 462122, 924244, 5314403, 10628806, 21257612]

約数ペア:

[(1, 21257612), (2, 10628806), (4, 5314403), (23, 924244), (46, 462122), (92, 231061), (229, 92828), (458, 46414), (916, 23207), (1009, 21068), (2018, 10534), (4036, 5267)]