78210117

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{31147}}^1$

素因数の和:31190

約数の個数: 20

約数和(自身を含む): 120605056

約数和(自身を除く): 42394939

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 31147, 93441, 280323, 840969, 965557, 2522907, 2896671, 8690013, 26070039, 78210117]

約数ペア:

[(1, 78210117), (3, 26070039), (9, 8690013), (27, 2896671), (31, 2522907), (81, 965557), (93, 840969), (279, 280323), (837, 93441), (2511, 31147)]