21094684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{405667}}^1$

素因数の和:405684

約数の個数: 12

約数和(自身を含む): 39755464

約数和(自身を除く): 18660780

約数列:

[1, 2, 4, 13, 26, 52, 405667, 811334, 1622668, 5273671, 10547342, 21094684]

約数ペア:

[(1, 21094684), (2, 10547342), (4, 5273671), (13, 1622668), (26, 811334), (52, 405667)]