1221248007

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{625319}}^1$

素因数の和:625363

約数の個数: 24

約数和(自身を含む): 2081064960

約数和(自身を除く): 859816953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 625319, 1875957, 4377233, 5627871, 13131699, 19384889, 39395097, 58154667, 135694223, 174464001, 407082669, 1221248007]

約数ペア:

[(1, 1221248007), (3, 407082669), (7, 174464001), (9, 135694223), (21, 58154667), (31, 39395097), (63, 19384889), (93, 13131699), (217, 5627871), (279, 4377233), (651, 1875957), (1953, 625319)]