289791999

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16487}}^1$

素因数の和:16537

約数の個数: 40

約数和(自身を含む): 510732288

約数和(自身を除く): 220940289

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1953, 2511, 5859, 16487, 17577, 49461, 115409, 148383, 346227, 445149, 511097, 1038681, 1335447, 1533291, 3116043, 3577679, 4599873, 9348129, 10733037, 13799619, 32199111, 41398857, 96597333, 289791999]

約数ペア:

[(1, 289791999), (3, 96597333), (7, 41398857), (9, 32199111), (21, 13799619), (27, 10733037), (31, 9348129), (63, 4599873), (81, 3577679), (93, 3116043), (189, 1533291), (217, 1335447), (279, 1038681), (567, 511097), (651, 445149), (837, 346227), (1953, 148383), (2511, 115409), (5859, 49461), (16487, 17577)]