16821801

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{21001}}^1$

素因数の和:21096

約数の個数: 12

約数和(自身を含む): 24572340

約数和(自身を除く): 7750539

約数列:

[1, 3, 9, 89, 267, 801, 21001, 63003, 189009, 1869089, 5607267, 16821801]

約数ペア:

[(1, 16821801), (3, 5607267), (9, 1869089), (89, 189009), (267, 63003), (801, 21001)]