16561209

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8861}}^1$

素因数の和:8960

約数の個数: 16

約数和(自身を含む): 25522560

約数和(自身を除く): 8961351

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 8861, 26583, 62027, 186081, 788629, 2365887, 5520403, 16561209]

約数ペア:

[(1, 16561209), (3, 5520403), (7, 2365887), (21, 788629), (89, 186081), (267, 62027), (623, 26583), (1869, 8861)]