21522225

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3931}}^1$

素因数の和:4017

約数の個数: 24

約数和(自身を含む): 36080032

約数和(自身を除く): 14557807

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 3931, 5475, 11793, 19655, 58965, 98275, 286963, 294825, 860889, 1434815, 4304445, 7174075, 21522225]

約数ペア:

[(1, 21522225), (3, 7174075), (5, 4304445), (15, 1434815), (25, 860889), (73, 294825), (75, 286963), (219, 98275), (365, 58965), (1095, 19655), (1825, 11793), (3931, 5475)]