19220765

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1867}}^1$

素因数の和:1972

約数の個数: 16

約数和(自身を含む): 24209280

約数和(自身を除く): 4988515

約数列:

[1, 5, 29, 71, 145, 355, 1867, 2059, 9335, 10295, 54143, 132557, 270715, 662785, 3844153, 19220765]

約数ペア:

[(1, 19220765), (5, 3844153), (29, 662785), (71, 270715), (145, 132557), (355, 54143), (1867, 10295), (2059, 9335)]