20878812

素因数分解:

$2^2\times 3^2\times {\mathrm{579967}}^1$

素因数の和:579977

約数の個数: 18

約数和(自身を含む): 52777088

約数和(自身を除く): 31898276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 579967, 1159934, 1739901, 2319868, 3479802, 5219703, 6959604, 10439406, 20878812]

約数ペア:

[(1, 20878812), (2, 10439406), (3, 6959604), (4, 5219703), (6, 3479802), (9, 2319868), (12, 1739901), (18, 1159934), (36, 579967)]