20971197

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59747}}^1$

素因数の和:59769

約数の個数: 16

約数和(自身を含む): 33458880

約数和(自身を除く): 12487683

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59747, 179241, 537723, 776711, 1613169, 2330133, 6990399, 20971197]

約数ペア:

[(1, 20971197), (3, 6990399), (9, 2330133), (13, 1613169), (27, 776711), (39, 537723), (117, 179241), (351, 59747)]