12921867

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{463}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 21425664

約数和(自身を除く): 8503797

約数列:

[1, 3, 7, 9, 21, 63, 443, 463, 1329, 1389, 3101, 3241, 3987, 4167, 9303, 9723, 27909, 29169, 205109, 615327, 1435763, 1845981, 4307289, 12921867]

約数ペア:

[(1, 12921867), (3, 4307289), (7, 1845981), (9, 1435763), (21, 615327), (63, 205109), (443, 29169), (463, 27909), (1329, 9723), (1389, 9303), (3101, 4167), (3241, 3987)]