20900835

素因数分解:

$3^4\times 5^1\times {\mathrm{51607}}^1$

素因数の和:51624

約数の個数: 20

約数和(自身を含む): 37467408

約数和(自身を除く): 16566573

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 51607, 154821, 258035, 464463, 774105, 1393389, 2322315, 4180167, 6966945, 20900835]

約数ペア:

[(1, 20900835), (3, 6966945), (5, 4180167), (9, 2322315), (15, 1393389), (27, 774105), (45, 464463), (81, 258035), (135, 154821), (405, 51607)]