388332567

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{198839}}^1$

素因数の和:198883

約数の個数: 24

約数和(自身を含む): 661739520

約数和(自身を除く): 273406953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 198839, 596517, 1391873, 1789551, 4175619, 6164009, 12526857, 18492027, 43148063, 55476081, 129444189, 388332567]

約数ペア:

[(1, 388332567), (3, 129444189), (7, 55476081), (9, 43148063), (21, 18492027), (31, 12526857), (63, 6164009), (93, 4175619), (217, 1789551), (279, 1391873), (651, 596517), (1953, 198839)]