20686812

素因数分解:

$2^2\times 3^1\times {\mathrm{491}}^1\times {\mathrm{3511}}^1$

素因数の和:4009

約数の個数: 24

約数和(自身を含む): 48381312

約数和(自身を除く): 27694500

約数列:

[1, 2, 3, 4, 6, 12, 491, 982, 1473, 1964, 2946, 3511, 5892, 7022, 10533, 14044, 21066, 42132, 1723901, 3447802, 5171703, 6895604, 10343406, 20686812]

約数ペア:

[(1, 20686812), (2, 10343406), (3, 6895604), (4, 5171703), (6, 3447802), (12, 1723901), (491, 42132), (982, 21066), (1473, 14044), (1964, 10533), (2946, 7022), (3511, 5892)]