18208881

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4783}}^1$

素因数の和:4842

約数の個数: 20

約数和(自身を含む): 27785472

約数和(自身を除く): 9576591

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4783, 14349, 43047, 129141, 224801, 387423, 674403, 2023209, 6069627, 18208881]

約数ペア:

[(1, 18208881), (3, 6069627), (9, 2023209), (27, 674403), (47, 387423), (81, 224801), (141, 129141), (423, 43047), (1269, 14349), (3807, 4783)]