20989562

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14935558

約数列:

[1, 2, 11, 22, 29, 58, 167, 197, 319, 334, 394, 638, 1837, 2167, 3674, 4334, 4843, 5713, 9686, 11426, 32899, 53273, 62843, 65798, 106546, 125686, 361889, 723778, 954071, 1908142, 10494781, 20989562]

約数ペア:

[(1, 20989562), (2, 10494781), (11, 1908142), (22, 954071), (29, 723778), (58, 361889), (167, 125686), (197, 106546), (319, 65798), (334, 62843), (394, 53273), (638, 32899), (1837, 11426), (2167, 9686), (3674, 5713), (4334, 4843)]