20192481

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{487}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 31060224

約数和(自身を除く): 10867743

約数列:

[1, 3, 9, 17, 51, 153, 271, 487, 813, 1461, 2439, 4383, 4607, 8279, 13821, 24837, 41463, 74511, 131977, 395931, 1187793, 2243609, 6730827, 20192481]

約数ペア:

[(1, 20192481), (3, 6730827), (9, 2243609), (17, 1187793), (51, 395931), (153, 131977), (271, 74511), (487, 41463), (813, 24837), (1461, 13821), (2439, 8279), (4383, 4607)]