21374703

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{691}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 35408256

約数和(自身を除く): 14033553

約数列:

[1, 3, 7, 9, 21, 63, 491, 691, 1473, 2073, 3437, 4419, 4837, 6219, 10311, 14511, 30933, 43533, 339281, 1017843, 2374967, 3053529, 7124901, 21374703]

約数ペア:

[(1, 21374703), (3, 7124901), (7, 3053529), (9, 2374967), (21, 1017843), (63, 339281), (491, 43533), (691, 30933), (1473, 14511), (2073, 10311), (3437, 6219), (4419, 4837)]