19891729

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1231}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 23595264

約数和(自身を除く): 3703535

約数列:

[1, 11, 13, 113, 143, 1231, 1243, 1469, 13541, 16003, 16159, 139103, 176033, 1530133, 1808339, 19891729]

約数ペア:

[(1, 19891729), (11, 1808339), (13, 1530133), (113, 176033), (143, 139103), (1231, 16159), (1243, 16003), (1469, 13541)]