20841561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3361}}^1$

素因数の和:3433

約数の個数: 24

約数和(自身を含む): 33041736

約数和(自身を除く): 12200175

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3361, 6201, 10083, 30249, 43693, 131079, 178133, 393237, 534399, 1603197, 2315729, 6947187, 20841561]

約数ペア:

[(1, 20841561), (3, 6947187), (9, 2315729), (13, 1603197), (39, 534399), (53, 393237), (117, 178133), (159, 131079), (477, 43693), (689, 30249), (2067, 10083), (3361, 6201)]