21943305

素因数分解:

$3^4\times 5^1\times {\mathrm{54181}}^1$

素因数の和:54198

約数の個数: 20

約数和(自身を含む): 39336132

約数和(自身を除く): 17392827

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 54181, 162543, 270905, 487629, 812715, 1462887, 2438145, 4388661, 7314435, 21943305]

約数ペア:

[(1, 21943305), (3, 7314435), (5, 4388661), (9, 2438145), (15, 1462887), (27, 812715), (45, 487629), (81, 270905), (135, 162543), (405, 54181)]