19892385

素因数分解:

$3^4\times 5^1\times {\mathrm{49117}}^1$

素因数の和:49134

約数の個数: 20

約数和(自身を含む): 35659668

約数和(自身を除く): 15767283

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49117, 147351, 245585, 442053, 736755, 1326159, 2210265, 3978477, 6630795, 19892385]

約数ペア:

[(1, 19892385), (3, 6630795), (5, 3978477), (9, 2210265), (15, 1326159), (27, 736755), (45, 442053), (81, 245585), (135, 147351), (405, 49117)]