21882405

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2207}}^1$

素因数の和:2876

約数の個数: 16

約数和(自身を含む): 35080704

約数和(自身を除く): 13198299

約数列:

[1, 3, 5, 15, 661, 1983, 2207, 3305, 6621, 9915, 11035, 33105, 1458827, 4376481, 7294135, 21882405]

約数ペア:

[(1, 21882405), (3, 7294135), (5, 4376481), (15, 1458827), (661, 33105), (1983, 11035), (2207, 9915), (3305, 6621)]