20858553

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5479}}^1$

素因数の和:5538

約数の個数: 20

約数和(自身を含む): 31827840

約数和(自身を除く): 10969287

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5479, 16437, 49311, 147933, 257513, 443799, 772539, 2317617, 6952851, 20858553]

約数ペア:

[(1, 20858553), (3, 6952851), (9, 2317617), (27, 772539), (47, 443799), (81, 257513), (141, 147933), (423, 49311), (1269, 16437), (3807, 5479)]