78129009

素因数分解:

$3^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2633}}^1$

素因数の和:2806

約数の個数: 32

約数和(自身を含む): 133175040

約数和(自身を除く): 55046031

約数列:

[1, 3, 7, 9, 21, 27, 63, 157, 189, 471, 1099, 1413, 2633, 3297, 4239, 7899, 9891, 18431, 23697, 29673, 55293, 71091, 165879, 413381, 497637, 1240143, 2893667, 3720429, 8681001, 11161287, 26043003, 78129009]

約数ペア:

[(1, 78129009), (3, 26043003), (7, 11161287), (9, 8681001), (21, 3720429), (27, 2893667), (63, 1240143), (157, 497637), (189, 413381), (471, 165879), (1099, 71091), (1413, 55293), (2633, 29673), (3297, 23697), (4239, 18431), (7899, 9891)]