20987438759

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{4391}}^1$

素因数の和:4691

約数の個数: 32

約数和(自身を含む): 24893153280

約数和(自身を除く): 3905714521

約数列:

[1, 7, 59, 71, 163, 413, 497, 1141, 4189, 4391, 9617, 11573, 29323, 30737, 67319, 81011, 259069, 311761, 682807, 715733, 1813483, 2182327, 4779649, 5010131, 18393899, 42228247, 50817043, 128757293, 295597729, 355719301, 2998205537, 20987438759]

約数ペア:

[(1, 20987438759), (7, 2998205537), (59, 355719301), (71, 295597729), (163, 128757293), (413, 50817043), (497, 42228247), (1141, 18393899), (4189, 5010131), (4391, 4779649), (9617, 2182327), (11573, 1813483), (29323, 715733), (30737, 682807), (67319, 311761), (81011, 259069)]