20221868

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1321}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 36645840

約数和(自身を除く): 16423972

約数列:

[1, 2, 4, 43, 86, 89, 172, 178, 356, 1321, 2642, 3827, 5284, 7654, 15308, 56803, 113606, 117569, 227212, 235138, 470276, 5055467, 10110934, 20221868]

約数ペア:

[(1, 20221868), (2, 10110934), (4, 5055467), (43, 470276), (86, 235138), (89, 227212), (172, 117569), (178, 113606), (356, 56803), (1321, 15308), (2642, 7654), (3827, 5284)]