21152808968

素因数分解:

$2^3\times {\mathrm{317}}^1\times {\mathrm{8341013}}^1$

素因数の和:8341336

約数の個数: 16

約数和(自身を含む): 39786636780

約数和(自身を除く): 18633827812

約数列:

[1, 2, 4, 8, 317, 634, 1268, 2536, 8341013, 16682026, 33364052, 66728104, 2644101121, 5288202242, 10576404484, 21152808968]

約数ペア:

[(1, 21152808968), (2, 10576404484), (4, 5288202242), (8, 2644101121), (317, 66728104), (634, 33364052), (1268, 16682026), (2536, 8341013)]