18675333

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 13465467

約数列:

[1, 3, 9, 17, 23, 27, 29, 51, 61, 69, 87, 153, 183, 207, 261, 391, 459, 493, 549, 621, 667, 783, 1037, 1173, 1403, 1479, 1647, 1769, 2001, 3111, 3519, 4209, 4437, 5307, 6003, 9333, 10557, 11339, 12627, 13311, 15921, 18009, 23851, 27999, 30073, 34017, 37881, 40687, 47763, 71553, 90219, 102051, 122061, 214659, 270657, 306153, 366183, 643977, 691679, 811971, 1098549, 2075037, 6225111, 18675333]

約数ペア:

[(1, 18675333), (3, 6225111), (9, 2075037), (17, 1098549), (23, 811971), (27, 691679), (29, 643977), (51, 366183), (61, 306153), (69, 270657), (87, 214659), (153, 122061), (183, 102051), (207, 90219), (261, 71553), (391, 47763), (459, 40687), (493, 37881), (549, 34017), (621, 30073), (667, 27999), (783, 23851), (1037, 18009), (1173, 15921), (1403, 13311), (1479, 12627), (1647, 11339), (1769, 10557), (2001, 9333), (3111, 6003), (3519, 5307), (4209, 4437)]