20981256

素因数分解:

$2^3\times 3^1\times {\mathrm{863}}^1\times {\mathrm{1013}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 52565760

約数和(自身を除く): 31584504

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 863, 1013, 1726, 2026, 2589, 3039, 3452, 4052, 5178, 6078, 6904, 8104, 10356, 12156, 20712, 24312, 874219, 1748438, 2622657, 3496876, 5245314, 6993752, 10490628, 20981256]

約数ペア:

[(1, 20981256), (2, 10490628), (3, 6993752), (4, 5245314), (6, 3496876), (8, 2622657), (12, 1748438), (24, 874219), (863, 24312), (1013, 20712), (1726, 12156), (2026, 10356), (2589, 8104), (3039, 6904), (3452, 6078), (4052, 5178)]