21000912569

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{59159}}^1$

素因数の和:59309

約数の個数: 32

約数和(自身を含む): 26715709440

約数和(自身を除く): 5714796871

約数列:

[1, 7, 13, 47, 83, 91, 329, 581, 611, 1079, 3901, 4277, 7553, 27307, 50713, 59159, 354991, 414113, 769067, 2780473, 4910197, 5383469, 19463311, 34371379, 36146149, 63832561, 230779259, 253023043, 446827927, 1615454813, 3000130367, 21000912569]

約数ペア:

[(1, 21000912569), (7, 3000130367), (13, 1615454813), (47, 446827927), (83, 253023043), (91, 230779259), (329, 63832561), (581, 36146149), (611, 34371379), (1079, 19463311), (3901, 5383469), (4277, 4910197), (7553, 2780473), (27307, 769067), (50713, 414113), (59159, 354991)]