28493649

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 45961344

約数和(自身を除く): 17467695

約数列:

[1, 3, 9, 17, 43, 51, 61, 71, 129, 153, 183, 213, 387, 549, 639, 731, 1037, 1207, 2193, 2623, 3053, 3111, 3621, 4331, 6579, 7869, 9159, 9333, 10863, 12993, 23607, 27477, 38979, 44591, 51901, 73627, 133773, 155703, 186233, 220881, 401319, 467109, 558699, 662643, 1676097, 3165961, 9497883, 28493649]

約数ペア:

[(1, 28493649), (3, 9497883), (9, 3165961), (17, 1676097), (43, 662643), (51, 558699), (61, 467109), (71, 401319), (129, 220881), (153, 186233), (183, 155703), (213, 133773), (387, 73627), (549, 51901), (639, 44591), (731, 38979), (1037, 27477), (1207, 23607), (2193, 12993), (2623, 10863), (3053, 9333), (3111, 9159), (3621, 7869), (4331, 6579)]