205280206551

素因数分解:

$3^3\times 7^1\times {\mathrm{1999}}^1\times {\mathrm{543341}}^1$

素因数の和:545356

約数の個数: 32

約数和(自身を含む): 347738880000

約数和(自身を除く): 142458673449

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1999, 5997, 13993, 17991, 41979, 53973, 125937, 377811, 543341, 1630023, 3803387, 4890069, 11410161, 14670207, 34230483, 102691449, 1086138659, 3258415977, 7602970613, 9775247931, 22808911839, 29325743793, 68426735517, 205280206551]

約数ペア:

[(1, 205280206551), (3, 68426735517), (7, 29325743793), (9, 22808911839), (21, 9775247931), (27, 7602970613), (63, 3258415977), (189, 1086138659), (1999, 102691449), (5997, 34230483), (13993, 14670207), (17991, 11410161), (41979, 4890069), (53973, 3803387), (125937, 1630023), (377811, 543341)]