205804557

素因数分解:

$3^4\times 7^2\times {\mathrm{51853}}^1$

素因数の和:51879

約数の個数: 30

約数和(自身を含む): 357637038

約数和(自身を除く): 151832481

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 51853, 155559, 362971, 466677, 1088913, 1400031, 2540797, 3266739, 4200093, 7622391, 9800217, 22867173, 29400651, 68601519, 205804557]

約数ペア:

[(1, 205804557), (3, 68601519), (7, 29400651), (9, 22867173), (21, 9800217), (27, 7622391), (49, 4200093), (63, 3266739), (81, 2540797), (147, 1400031), (189, 1088913), (441, 466677), (567, 362971), (1323, 155559), (3969, 51853)]