20219984

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2221}}^1$

素因数の和:2798

約数の個数: 20

約数和(自身を含む): 39262740

約数和(自身を除く): 19042756

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2221, 2276, 4442, 4552, 8884, 9104, 17768, 35536, 1263749, 2527498, 5054996, 10109992, 20219984]

約数ペア:

[(1, 20219984), (2, 10109992), (4, 5054996), (8, 2527498), (16, 1263749), (569, 35536), (1138, 17768), (2221, 9104), (2276, 8884), (4442, 4552)]