78164919

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4447}}^1$

素因数の和:4497

約数の個数: 40

約数和(自身を含む): 137781248

約数和(自身を除く): 59616329

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1953, 2511, 4447, 5859, 13341, 17577, 31129, 40023, 93387, 120069, 137857, 280161, 360207, 413571, 840483, 964999, 1240713, 2521449, 2894997, 3722139, 8684991, 11166417, 26054973, 78164919]

約数ペア:

[(1, 78164919), (3, 26054973), (7, 11166417), (9, 8684991), (21, 3722139), (27, 2894997), (31, 2521449), (63, 1240713), (81, 964999), (93, 840483), (189, 413571), (217, 360207), (279, 280161), (567, 137857), (651, 120069), (837, 93387), (1953, 40023), (2511, 31129), (4447, 17577), (5859, 13341)]