21520147

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{733}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 25049952

約数和(自身を除く): 3529805

約数列:

[1, 11, 17, 157, 187, 733, 1727, 2669, 8063, 12461, 29359, 115081, 137071, 1265891, 1956377, 21520147]

約数ペア:

[(1, 21520147), (11, 1956377), (17, 1265891), (157, 137071), (187, 115081), (733, 29359), (1727, 12461), (2669, 8063)]