20218041

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 10052199

約数列:

[1, 3, 9, 43, 89, 129, 267, 387, 587, 801, 1761, 3827, 5283, 11481, 25241, 34443, 52243, 75723, 156729, 227169, 470187, 2246449, 6739347, 20218041]

約数ペア:

[(1, 20218041), (3, 6739347), (9, 2246449), (43, 470187), (89, 227169), (129, 156729), (267, 75723), (387, 52243), (587, 34443), (801, 25241), (1761, 11481), (3827, 5283)]