20819349

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6269}}^1$

素因数の和:6322

約数の個数: 20

約数和(自身を含む): 31864140

約数和(自身を除く): 11044791

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6269, 18807, 56421, 169263, 257029, 507789, 771087, 2313261, 6939783, 20819349]

約数ペア:

[(1, 20819349), (3, 6939783), (9, 2313261), (27, 771087), (41, 507789), (81, 257029), (123, 169263), (369, 56421), (1107, 18807), (3321, 6269)]