21851103

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2729}}^1$

素因数の和:2906

約数の個数: 16

約数和(自身を含む): 31056480

約数和(自身を除く): 9205377

約数列:

[1, 3, 17, 51, 157, 471, 2669, 2729, 8007, 8187, 46393, 139179, 428453, 1285359, 7283701, 21851103]

約数ペア:

[(1, 21851103), (3, 7283701), (17, 1285359), (51, 428453), (157, 139179), (471, 46393), (2669, 8187), (2729, 8007)]