216783

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:84

約数の個数: 32

約数和(自身を含む): 389120

約数和(自身を除く): 172337

約数列:

[1, 3, 7, 9, 21, 27, 31, 37, 63, 93, 111, 189, 217, 259, 279, 333, 651, 777, 837, 999, 1147, 1953, 2331, 3441, 5859, 6993, 8029, 10323, 24087, 30969, 72261, 216783]

約数ペア:

[(1, 216783), (3, 72261), (7, 30969), (9, 24087), (21, 10323), (27, 8029), (31, 6993), (37, 5859), (63, 3441), (93, 2331), (111, 1953), (189, 1147), (217, 999), (259, 837), (279, 777), (333, 651)]