22131221

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{1361}}^1$

素因数の和:1492

約数の個数: 16

約数和(自身を含む): 26673408

約数和(自身を除く): 4542187

約数列:

[1, 7, 23, 101, 161, 707, 1361, 2323, 9527, 16261, 31303, 137461, 219121, 962227, 3161603, 22131221]

約数ペア:

[(1, 22131221), (7, 3161603), (23, 962227), (101, 219121), (161, 137461), (707, 31303), (1361, 16261), (2323, 9527)]