21889636

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1307}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 39553920

約数和(自身を除く): 17664284

約数列:

[1, 2, 4, 53, 79, 106, 158, 212, 316, 1307, 2614, 4187, 5228, 8374, 16748, 69271, 103253, 138542, 206506, 277084, 413012, 5472409, 10944818, 21889636]

約数ペア:

[(1, 21889636), (2, 10944818), (4, 5472409), (53, 413012), (79, 277084), (106, 206506), (158, 138542), (212, 103253), (316, 69271), (1307, 16748), (2614, 8374), (4187, 5228)]