20786662

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:808

約数の個数: 24

約数和(自身を含む): 34191720

約数和(自身を除く): 13405058

約数列:

[1, 2, 13, 26, 89, 169, 178, 338, 691, 1157, 1382, 2314, 8983, 15041, 17966, 30082, 61499, 116779, 122998, 233558, 799487, 1598974, 10393331, 20786662]

約数ペア:

[(1, 20786662), (2, 10393331), (13, 1598974), (26, 799487), (89, 233558), (169, 122998), (178, 116779), (338, 61499), (691, 30082), (1157, 17966), (1382, 15041), (2314, 8983)]