28778477

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{607}}^1$

素因数の和:1148

約数の個数: 16

約数和(自身を含む): 35546112

約数和(自身を除く): 6767635

約数列:

[1, 7, 13, 91, 521, 607, 3647, 4249, 6773, 7891, 47411, 55237, 316247, 2213729, 4111211, 28778477]

約数ペア:

[(1, 28778477), (7, 4111211), (13, 2213729), (91, 316247), (521, 55237), (607, 47411), (3647, 7891), (4249, 6773)]