21701537

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 5877343

約数列:

[1, 11, 13, 17, 79, 113, 143, 187, 221, 869, 1027, 1243, 1343, 1469, 1921, 2431, 8927, 11297, 14773, 16159, 17459, 21131, 24973, 98197, 116051, 151759, 192049, 274703, 1276561, 1669349, 1972867, 21701537]

約数ペア:

[(1, 21701537), (11, 1972867), (13, 1669349), (17, 1276561), (79, 274703), (113, 192049), (143, 151759), (187, 116051), (221, 98197), (869, 24973), (1027, 21131), (1243, 17459), (1343, 16159), (1469, 14773), (1921, 11297), (2431, 8927)]