18012915

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 16201485

約数列:

[1, 3, 5, 9, 15, 27, 29, 43, 45, 87, 107, 129, 135, 145, 215, 261, 321, 387, 435, 535, 645, 783, 963, 1161, 1247, 1305, 1605, 1935, 2889, 3103, 3741, 3915, 4601, 4815, 5805, 6235, 9309, 11223, 13803, 14445, 15515, 18705, 23005, 27927, 33669, 41409, 46545, 56115, 69015, 83781, 124227, 133429, 139635, 168345, 207045, 400287, 418905, 621135, 667145, 1200861, 2001435, 3602583, 6004305, 18012915]

約数ペア:

[(1, 18012915), (3, 6004305), (5, 3602583), (9, 2001435), (15, 1200861), (27, 667145), (29, 621135), (43, 418905), (45, 400287), (87, 207045), (107, 168345), (129, 139635), (135, 133429), (145, 124227), (215, 83781), (261, 69015), (321, 56115), (387, 46545), (435, 41409), (535, 33669), (645, 27927), (783, 23005), (963, 18705), (1161, 15515), (1247, 14445), (1305, 13803), (1605, 11223), (1935, 9309), (2889, 6235), (3103, 5805), (3741, 4815), (3915, 4601)]