25297168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{121621}}^1$

素因数の和:121642

約数の個数: 20

約数和(自身を含む): 52783948

約数和(自身を除く): 27486780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 121621, 243242, 486484, 972968, 1581073, 1945936, 3162146, 6324292, 12648584, 25297168]

約数ペア:

[(1, 25297168), (2, 12648584), (4, 6324292), (8, 3162146), (13, 1945936), (16, 1581073), (26, 972968), (52, 486484), (104, 243242), (208, 121621)]