391759815

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{19447}}^1$

素因数の和:19551

約数の個数: 32

約数和(自身を含む): 672122880

約数和(自身を除く): 280363065

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1185, 1343, 4029, 6715, 19447, 20145, 58341, 97235, 291705, 330599, 991797, 1536313, 1652995, 4608939, 4958985, 7681565, 23044695, 26117321, 78351963, 130586605, 391759815]

約数ペア:

[(1, 391759815), (3, 130586605), (5, 78351963), (15, 26117321), (17, 23044695), (51, 7681565), (79, 4958985), (85, 4608939), (237, 1652995), (255, 1536313), (395, 991797), (1185, 330599), (1343, 291705), (4029, 97235), (6715, 58341), (19447, 20145)]