20612845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4211}}^1$

素因数の和:4316

約数の個数: 16

約数和(自身を含む): 27293760

約数和(自身を除く): 6680915

約数列:

[1, 5, 11, 55, 89, 445, 979, 4211, 4895, 21055, 46321, 231605, 374779, 1873895, 4122569, 20612845]

約数ペア:

[(1, 20612845), (5, 4122569), (11, 1873895), (55, 374779), (89, 231605), (445, 46321), (979, 21055), (4211, 4895)]