20379243

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{977}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 28870560

約数和(自身を除く): 8491317

約数列:

[1, 3, 17, 51, 409, 977, 1227, 2931, 6953, 16609, 20859, 49827, 399593, 1198779, 6793081, 20379243]

約数ペア:

[(1, 20379243), (3, 6793081), (17, 1198779), (51, 399593), (409, 49827), (977, 20859), (1227, 16609), (2931, 6953)]