28862991

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2657}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 44781984

約数和(自身を除く): 15918993

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 2657, 3621, 7971, 10863, 23913, 45169, 135507, 188647, 406521, 565941, 1697823, 3206999, 9620997, 28862991]

約数ペア:

[(1, 28862991), (3, 9620997), (9, 3206999), (17, 1697823), (51, 565941), (71, 406521), (153, 188647), (213, 135507), (639, 45169), (1207, 23913), (2657, 10863), (3621, 7971)]