20780403

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1733}}^1$

素因数の和:2314

約数の個数: 16

約数和(自身を含む): 31739136

約数和(自身を除く): 10958733

約数列:

[1, 3, 7, 21, 571, 1713, 1733, 3997, 5199, 11991, 12131, 36393, 989543, 2968629, 6926801, 20780403]

約数ペア:

[(1, 20780403), (3, 6926801), (7, 2968629), (21, 989543), (571, 36393), (1713, 12131), (1733, 11991), (3997, 5199)]