1261897947

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{916411}}^1$

素因数の和:916440

約数の個数: 20

約数和(自身を含む): 1995945336

約数和(自身を除く): 734047389

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 916411, 2749233, 8247699, 15578987, 24743097, 46736961, 74229291, 140210883, 420632649, 1261897947]

約数ペア:

[(1, 1261897947), (3, 420632649), (9, 140210883), (17, 74229291), (27, 46736961), (51, 24743097), (81, 15578987), (153, 8247699), (459, 2749233), (1377, 916411)]