21534095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{587}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 8947825

約数列:

[1, 5, 11, 23, 29, 55, 115, 145, 253, 319, 587, 667, 1265, 1595, 2935, 3335, 6457, 7337, 13501, 17023, 32285, 36685, 67505, 85115, 148511, 187253, 391529, 742555, 936265, 1957645, 4306819, 21534095]

約数ペア:

[(1, 21534095), (5, 4306819), (11, 1957645), (23, 936265), (29, 742555), (55, 391529), (115, 187253), (145, 148511), (253, 85115), (319, 67505), (587, 36685), (667, 32285), (1265, 17023), (1595, 13501), (2935, 7337), (3335, 6457)]