220149981

素因数分解:

$3^7\times {\mathrm{43}}^1\times {\mathrm{2341}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 337997440

約数和(自身を除く): 117847459

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 729, 1161, 2187, 2341, 3483, 7023, 10449, 21069, 31347, 63207, 94041, 100663, 189621, 301989, 568863, 905967, 1706589, 2717901, 5119767, 8153703, 24461109, 73383327, 220149981]

約数ペア:

[(1, 220149981), (3, 73383327), (9, 24461109), (27, 8153703), (43, 5119767), (81, 2717901), (129, 1706589), (243, 905967), (387, 568863), (729, 301989), (1161, 189621), (2187, 100663), (2341, 94041), (3483, 63207), (7023, 31347), (10449, 21069)]