205340913

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{10607}}^1$

素因数の和:10858

約数の個数: 20

約数和(自身を含む): 308056320

約数和(自身を除く): 102715407

約数列:

[1, 3, 9, 27, 81, 239, 717, 2151, 6453, 10607, 19359, 31821, 95463, 286389, 859167, 2535073, 7605219, 22815657, 68446971, 205340913]

約数ペア:

[(1, 205340913), (3, 68446971), (9, 22815657), (27, 7605219), (81, 2535073), (239, 859167), (717, 286389), (2151, 95463), (6453, 31821), (10607, 19359)]