21000643262

素因数分解:

$2^1\times {\mathrm{317}}^1\times {\mathrm{787}}^1\times {\mathrm{42089}}^1$

素因数の和:43195

約数の個数: 16

約数和(自身を含む): 31641241680

約数和(自身を除く): 10640598418

約数列:

[1, 2, 317, 634, 787, 1574, 42089, 84178, 249479, 498958, 13342213, 26684426, 33124043, 66248086, 10500321631, 21000643262]

約数ペア:

[(1, 21000643262), (2, 10500321631), (317, 66248086), (634, 33124043), (787, 26684426), (1574, 13342213), (42089, 498958), (84178, 249479)]