21412725

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3911}}^1$

素因数の和:3997

約数の個数: 24

約数和(自身を含む): 35896512

約数和(自身を除く): 14483787

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 3911, 5475, 11733, 19555, 58665, 97775, 285503, 293325, 856509, 1427515, 4282545, 7137575, 21412725]

約数ペア:

[(1, 21412725), (3, 7137575), (5, 4282545), (15, 1427515), (25, 856509), (73, 293325), (75, 285503), (219, 97775), (365, 58665), (1095, 19555), (1825, 11733), (3911, 5475)]