21430905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34847}}^1$

素因数の和:34896

約数の個数: 16

約数和(自身を含む): 35126784

約数和(自身を除く): 13695879

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34847, 104541, 174235, 522705, 1428727, 4286181, 7143635, 21430905]

約数ペア:

[(1, 21430905), (3, 7143635), (5, 4286181), (15, 1428727), (41, 522705), (123, 174235), (205, 104541), (615, 34847)]