21194475

素因数分解:

$3^1\times 5^2\times {\mathrm{461}}^1\times {\mathrm{613}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 35174832

約数和(自身を除く): 13980357

約数列:

[1, 3, 5, 15, 25, 75, 461, 613, 1383, 1839, 2305, 3065, 6915, 9195, 11525, 15325, 34575, 45975, 282593, 847779, 1412965, 4238895, 7064825, 21194475]

約数ペア:

[(1, 21194475), (3, 7064825), (5, 4238895), (15, 1412965), (25, 847779), (75, 282593), (461, 45975), (613, 34575), (1383, 15325), (1839, 11525), (2305, 9195), (3065, 6915)]