286687107

素因数分解:

$3^4\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1201}}^1$

素因数の和:1641

約数の個数: 40

約数和(自身を含む): 491012192

約数和(自身を除く): 204325085

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 421, 567, 1201, 1263, 2947, 3603, 3789, 8407, 8841, 10809, 11367, 25221, 26523, 32427, 34101, 75663, 79569, 97281, 226989, 238707, 505621, 680967, 1516863, 3539347, 4550589, 10618041, 13651767, 31854123, 40955301, 95562369, 286687107]

約数ペア:

[(1, 286687107), (3, 95562369), (7, 40955301), (9, 31854123), (21, 13651767), (27, 10618041), (63, 4550589), (81, 3539347), (189, 1516863), (421, 680967), (567, 505621), (1201, 238707), (1263, 226989), (2947, 97281), (3603, 79569), (3789, 75663), (8407, 34101), (8841, 32427), (10809, 26523), (11367, 25221)]