20681329

素因数分解:

${\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1068

約数の個数: 12

約数和(自身を含む): 22219920

約数和(自身を除く): 1538591

約数列:

[1, 19, 59, 361, 971, 1121, 18449, 21299, 57289, 350531, 1088491, 20681329]

約数ペア:

[(1, 20681329), (19, 1088491), (59, 350531), (361, 57289), (971, 21299), (1121, 18449)]