19211615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2861}}^1$

素因数の和:2962

約数の個数: 16

約数和(自身を含む): 24727680

約数和(自身を除く): 5516065

約数列:

[1, 5, 17, 79, 85, 395, 1343, 2861, 6715, 14305, 48637, 226019, 243185, 1130095, 3842323, 19211615]

約数ペア:

[(1, 19211615), (5, 3842323), (17, 1130095), (79, 243185), (85, 226019), (395, 48637), (1343, 14305), (2861, 6715)]