20977167

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{977}}^1$

素因数の和:1418

約数の個数: 16

約数和(自身を含む): 29715552

約数和(自身を除く): 8738385

約数列:

[1, 3, 17, 51, 421, 977, 1263, 2931, 7157, 16609, 21471, 49827, 411317, 1233951, 6992389, 20977167]

約数ペア:

[(1, 20977167), (3, 6992389), (17, 1233951), (51, 411317), (421, 49827), (977, 21471), (1263, 16609), (2931, 7157)]