25115391

素因数分解:

$3^2\times 7^2\times {\mathrm{56951}}^1$

素因数の和:56971

約数の個数: 18

約数和(自身を含む): 42201432

約数和(自身を除く): 17086041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 56951, 170853, 398657, 512559, 1195971, 2790599, 3587913, 8371797, 25115391]

約数ペア:

[(1, 25115391), (3, 8371797), (7, 3587913), (9, 2790599), (21, 1195971), (49, 512559), (63, 398657), (147, 170853), (441, 56951)]