21821295

素因数分解:

$3^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1489}}^1$

素因数の和:2474

約数の個数: 16

約数和(自身を含む): 34973280

約数和(自身を除く): 13151985

約数列:

[1, 3, 5, 15, 977, 1489, 2931, 4467, 4885, 7445, 14655, 22335, 1454753, 4364259, 7273765, 21821295]

約数ペア:

[(1, 21821295), (3, 7273765), (5, 4364259), (15, 1454753), (977, 22335), (1489, 14655), (2931, 7445), (4467, 4885)]