21434463

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1068

約数の個数: 20

約数和(自身を含む): 32147280

約数和(自身を除く): 10712817

約数列:

[1, 3, 9, 27, 81, 409, 647, 1227, 1941, 3681, 5823, 11043, 17469, 33129, 52407, 264623, 793869, 2381607, 7144821, 21434463]

約数ペア:

[(1, 21434463), (3, 7144821), (9, 2381607), (27, 793869), (81, 264623), (409, 52407), (647, 33129), (1227, 17469), (1941, 11043), (3681, 5823)]