18515601

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 32659200

約数和(自身を除く): 14143599

約数列:

[1, 3, 9, 13, 17, 27, 29, 39, 51, 87, 107, 117, 153, 221, 261, 321, 351, 377, 459, 493, 663, 783, 963, 1131, 1391, 1479, 1819, 1989, 2889, 3103, 3393, 4173, 4437, 5457, 5967, 6409, 9309, 10179, 12519, 13311, 16371, 19227, 23647, 27927, 37557, 40339, 49113, 52751, 57681, 70941, 83781, 121017, 158253, 173043, 212823, 363051, 474759, 638469, 685763, 1089153, 1424277, 2057289, 6171867, 18515601]

約数ペア:

[(1, 18515601), (3, 6171867), (9, 2057289), (13, 1424277), (17, 1089153), (27, 685763), (29, 638469), (39, 474759), (51, 363051), (87, 212823), (107, 173043), (117, 158253), (153, 121017), (221, 83781), (261, 70941), (321, 57681), (351, 52751), (377, 49113), (459, 40339), (493, 37557), (663, 27927), (783, 23647), (963, 19227), (1131, 16371), (1391, 13311), (1479, 12519), (1819, 10179), (1989, 9309), (2889, 6409), (3103, 5967), (3393, 5457), (4173, 4437)]