21672567

素因数分解:

$3^2\times 7^1\times {\mathrm{463}}^1\times {\mathrm{743}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 35902464

約数和(自身を除く): 14229897

約数列:

[1, 3, 7, 9, 21, 63, 463, 743, 1389, 2229, 3241, 4167, 5201, 6687, 9723, 15603, 29169, 46809, 344009, 1032027, 2408063, 3096081, 7224189, 21672567]

約数ペア:

[(1, 21672567), (3, 7224189), (7, 3096081), (9, 2408063), (21, 1032027), (63, 344009), (463, 46809), (743, 29169), (1389, 15603), (2229, 9723), (3241, 6687), (4167, 5201)]