18391671

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2357}}^1$

素因数の和:2400

約数の個数: 24

約数和(自身を含む): 28956240

約数和(自身を除く): 10564569

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2357, 2601, 7071, 7803, 21213, 40069, 63639, 120207, 360621, 681173, 1081863, 2043519, 6130557, 18391671]

約数ペア:

[(1, 18391671), (3, 6130557), (9, 2043519), (17, 1081863), (27, 681173), (51, 360621), (153, 120207), (289, 63639), (459, 40069), (867, 21213), (2357, 7803), (2601, 7071)]