20162439

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 34769280

約数和(自身を除く): 14606841

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 243, 297, 397, 513, 627, 891, 1191, 1539, 1881, 2673, 3573, 4367, 4617, 5643, 7543, 10719, 13101, 16929, 22629, 32157, 39303, 50787, 67887, 82973, 96471, 117909, 203661, 248919, 353727, 610983, 746757, 1061181, 1832949, 2240271, 6720813, 20162439]

約数ペア:

[(1, 20162439), (3, 6720813), (9, 2240271), (11, 1832949), (19, 1061181), (27, 746757), (33, 610983), (57, 353727), (81, 248919), (99, 203661), (171, 117909), (209, 96471), (243, 82973), (297, 67887), (397, 50787), (513, 39303), (627, 32157), (891, 22629), (1191, 16929), (1539, 13101), (1881, 10719), (2673, 7543), (3573, 5643), (4367, 4617)]