19765845

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 37956672

約数和(自身を除く): 18190827

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 73, 99, 165, 219, 365, 495, 547, 657, 803, 1095, 1641, 2409, 2735, 3285, 4015, 4923, 6017, 7227, 8205, 12045, 18051, 24615, 30085, 36135, 39931, 54153, 90255, 119793, 199655, 270765, 359379, 439241, 598965, 1317723, 1796895, 2196205, 3953169, 6588615, 19765845]

約数ペア:

[(1, 19765845), (3, 6588615), (5, 3953169), (9, 2196205), (11, 1796895), (15, 1317723), (33, 598965), (45, 439241), (55, 359379), (73, 270765), (99, 199655), (165, 119793), (219, 90255), (365, 54153), (495, 39931), (547, 36135), (657, 30085), (803, 24615), (1095, 18051), (1641, 12045), (2409, 8205), (2735, 7227), (3285, 6017), (4015, 4923)]