25538331

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{673}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 42273280

約数和(自身を除く): 16734949

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 673, 973, 1807, 2019, 2919, 4711, 5421, 8749, 12649, 14133, 26247, 37947, 61243, 93547, 183729, 280641, 654829, 1216111, 1964487, 3648333, 8512777, 25538331]

約数ペア:

[(1, 25538331), (3, 8512777), (7, 3648333), (13, 1964487), (21, 1216111), (39, 654829), (91, 280641), (139, 183729), (273, 93547), (417, 61243), (673, 37947), (973, 26247), (1807, 14133), (2019, 12649), (2919, 8749), (4711, 5421)]