20986060

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4973}}^1$

素因数の和:5193

約数の個数: 24

約数和(自身を含む): 44288496

約数和(自身を除く): 23302436

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4973, 9946, 19892, 24865, 49730, 99460, 1049303, 2098606, 4197212, 5246515, 10493030, 20986060]

約数ペア:

[(1, 20986060), (2, 10493030), (4, 5246515), (5, 4197212), (10, 2098606), (20, 1049303), (211, 99460), (422, 49730), (844, 24865), (1055, 19892), (2110, 9946), (4220, 4973)]