28906821

素因数分解:

$3^3\times {\mathrm{223}}^1\times {\mathrm{4801}}^1$

素因数の和:5033

約数の個数: 16

約数和(自身を含む): 43025920

約数和(自身を除く): 14119099

約数列:

[1, 3, 9, 27, 223, 669, 2007, 4801, 6021, 14403, 43209, 129627, 1070623, 3211869, 9635607, 28906821]

約数ペア:

[(1, 28906821), (3, 9635607), (9, 3211869), (27, 1070623), (223, 129627), (669, 43209), (2007, 14403), (4801, 6021)]