216224721

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{86111}}^1$

素因数の和:86154

約数の個数: 20

約数和(自身を含む): 333425664

約数和(自身を除く): 117200943

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 86111, 258333, 774999, 2324997, 2669441, 6974991, 8008323, 24024969, 72074907, 216224721]

約数ペア:

[(1, 216224721), (3, 72074907), (9, 24024969), (27, 8008323), (31, 6974991), (81, 2669441), (93, 2324997), (279, 774999), (837, 258333), (2511, 86111)]