20820438

素因数分解:

$2^1\times 3^2\times {\mathrm{137}}^1\times {\mathrm{8443}}^1$

素因数の和:8588

約数の個数: 24

約数和(自身を含む): 45445608

約数和(自身を除く): 24625170

約数列:

[1, 2, 3, 6, 9, 18, 137, 274, 411, 822, 1233, 2466, 8443, 16886, 25329, 50658, 75987, 151974, 1156691, 2313382, 3470073, 6940146, 10410219, 20820438]

約数ペア:

[(1, 20820438), (2, 10410219), (3, 6940146), (6, 3470073), (9, 2313382), (18, 1156691), (137, 151974), (274, 75987), (411, 50658), (822, 25329), (1233, 16886), (2466, 8443)]