21478599

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1777}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 33284160

約数和(自身を除く): 11805561

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 711, 1343, 1777, 4029, 5331, 12087, 15993, 30209, 90627, 140383, 271881, 421149, 1263447, 2386511, 7159533, 21478599]

約数ペア:

[(1, 21478599), (3, 7159533), (9, 2386511), (17, 1263447), (51, 421149), (79, 271881), (153, 140383), (237, 90627), (711, 30209), (1343, 15993), (1777, 12087), (4029, 5331)]