18510855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2609}}^1$

素因数の和:2671

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 14563065

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 2609, 7095, 7827, 13045, 28699, 39135, 86097, 112187, 143495, 336561, 430485, 560935, 1234057, 1682805, 3702171, 6170285, 18510855]

約数ペア:

[(1, 18510855), (3, 6170285), (5, 3702171), (11, 1682805), (15, 1234057), (33, 560935), (43, 430485), (55, 336561), (129, 143495), (165, 112187), (215, 86097), (473, 39135), (645, 28699), (1419, 13045), (2365, 7827), (2609, 7095)]