254661953

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 323592192

約数和(自身を除く): 68930239

約数列:

[1, 7, 13, 43, 91, 151, 301, 431, 559, 1057, 1963, 3017, 3913, 5603, 6493, 13741, 18533, 39221, 45451, 65081, 84409, 129731, 240929, 455567, 590863, 846053, 1686503, 2798483, 5922371, 19589381, 36380279, 254661953]

約数ペア:

[(1, 254661953), (7, 36380279), (13, 19589381), (43, 5922371), (91, 2798483), (151, 1686503), (301, 846053), (431, 590863), (559, 455567), (1057, 240929), (1963, 129731), (3017, 84409), (3913, 65081), (5603, 45451), (6493, 39221), (13741, 18533)]