21271459

素因数分解:

${\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 23775840

約数和(自身を除く): 2504381

約数列:

[1, 11, 109, 113, 157, 1199, 1243, 1727, 12317, 17113, 17741, 135487, 188243, 195151, 1933769, 21271459]

約数ペア:

[(1, 21271459), (11, 1933769), (109, 195151), (113, 188243), (157, 135487), (1199, 17741), (1243, 17113), (1727, 12317)]