81961821

素因数分解:

$3^3\times {\mathrm{1607}}^1\times {\mathrm{1889}}^1$

素因数の和:3505

約数の個数: 16

約数和(自身を含む): 121564800

約数和(自身を除く): 39602979

約数列:

[1, 3, 9, 27, 1607, 1889, 4821, 5667, 14463, 17001, 43389, 51003, 3035623, 9106869, 27320607, 81961821]

約数ペア:

[(1, 81961821), (3, 27320607), (9, 9106869), (27, 3035623), (1607, 51003), (1889, 43389), (4821, 17001), (5667, 14463)]