31886739

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 47174400

約数和(自身を除く): 15287661

約数列:

[1, 3, 9, 71, 139, 213, 359, 417, 639, 1077, 1251, 3231, 9869, 25489, 29607, 49901, 76467, 88821, 149703, 229401, 449109, 3542971, 10628913, 31886739]

約数ペア:

[(1, 31886739), (3, 10628913), (9, 3542971), (71, 449109), (139, 229401), (213, 149703), (359, 88821), (417, 76467), (639, 49901), (1077, 29607), (1251, 25489), (3231, 9869)]