20681241

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5441}}^1$

素因数の和:5632

約数の個数: 16

約数和(自身を含む): 31694208

約数和(自身を除く): 11012967

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5441, 16323, 38087, 114261, 984821, 2954463, 6893747, 20681241]

約数ペア:

[(1, 20681241), (3, 6893747), (7, 2954463), (21, 984821), (181, 114261), (543, 38087), (1267, 16323), (3801, 5441)]