21166725

素因数分解:

$3^1\times 5^2\times {\mathrm{367}}^1\times {\mathrm{769}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 35136640

約数和(自身を除く): 13969915

約数列:

[1, 3, 5, 15, 25, 75, 367, 769, 1101, 1835, 2307, 3845, 5505, 9175, 11535, 19225, 27525, 57675, 282223, 846669, 1411115, 4233345, 7055575, 21166725]

約数ペア:

[(1, 21166725), (3, 7055575), (5, 4233345), (15, 1411115), (25, 846669), (75, 282223), (367, 57675), (769, 27525), (1101, 19225), (1835, 11535), (2307, 9175), (3845, 5505)]