20581735

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3301}}^1$

素因数の和:3378

約数の個数: 16

約数和(自身を含む): 26151840

約数和(自身を除く): 5570105

約数列:

[1, 5, 29, 43, 145, 215, 1247, 3301, 6235, 16505, 95729, 141943, 478645, 709715, 4116347, 20581735]

約数ペア:

[(1, 20581735), (5, 4116347), (29, 709715), (43, 478645), (145, 141943), (215, 95729), (1247, 16505), (3301, 6235)]