18508275

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1972

約数の個数: 36

約数和(自身を含む): 33939048

約数和(自身を除く): 15430773

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1913, 1935, 3225, 5739, 9565, 9675, 17217, 28695, 47825, 82259, 86085, 143475, 246777, 411295, 430425, 740331, 1233885, 2056475, 3701655, 6169425, 18508275]

約数ペア:

[(1, 18508275), (3, 6169425), (5, 3701655), (9, 2056475), (15, 1233885), (25, 740331), (43, 430425), (45, 411295), (75, 246777), (129, 143475), (215, 86085), (225, 82259), (387, 47825), (645, 28695), (1075, 17217), (1913, 9675), (1935, 9565), (3225, 5739)]