79721721

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{1493}}^1$

素因数の和:1865

約数の個数: 24

約数和(自身を含む): 122358600

約数和(自身を除く): 42636879

約数列:

[1, 3, 9, 17, 51, 153, 349, 1047, 1493, 3141, 4479, 5933, 13437, 17799, 25381, 53397, 76143, 228429, 521057, 1563171, 4689513, 8857969, 26573907, 79721721]

約数ペア:

[(1, 79721721), (3, 26573907), (9, 8857969), (17, 4689513), (51, 1563171), (153, 521057), (349, 228429), (1047, 76143), (1493, 53397), (3141, 25381), (4479, 17799), (5933, 13437)]