18912045

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 31363200

約数和(自身を除く): 12451155

約数列:

[1, 3, 5, 15, 43, 109, 129, 215, 269, 327, 545, 645, 807, 1345, 1635, 4035, 4687, 11567, 14061, 23435, 29321, 34701, 57835, 70305, 87963, 146605, 173505, 439815, 1260803, 3782409, 6304015, 18912045]

約数ペア:

[(1, 18912045), (3, 6304015), (5, 3782409), (15, 1260803), (43, 439815), (109, 173505), (129, 146605), (215, 87963), (269, 70305), (327, 57835), (545, 34701), (645, 29321), (807, 23435), (1345, 14061), (1635, 11567), (4035, 4687)]