217729665

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{68147}}^1$

素因数の和:68229

約数の個数: 24

約数和(自身を含む): 382719168

約数和(自身を除く): 164989503

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 68147, 204441, 340735, 613323, 1022205, 3066615, 4838437, 14515311, 24192185, 43545933, 72576555, 217729665]

約数ペア:

[(1, 217729665), (3, 72576555), (5, 43545933), (9, 24192185), (15, 14515311), (45, 4838437), (71, 3066615), (213, 1022205), (355, 613323), (639, 340735), (1065, 204441), (3195, 68147)]