13309821

素因数分解:

$3^2\times 7^2\times {\mathrm{30181}}^1$

素因数の和:30201

約数の個数: 18

約数和(自身を含む): 22364862

約数和(自身を除く): 9055041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 30181, 90543, 211267, 271629, 633801, 1478869, 1901403, 4436607, 13309821]

約数ペア:

[(1, 13309821), (3, 4436607), (7, 1901403), (9, 1478869), (21, 633801), (49, 271629), (63, 211267), (147, 90543), (441, 30181)]