21211993

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2738087

約数列:

[1, 11, 47, 89, 461, 517, 979, 4183, 5071, 21667, 41029, 46013, 238337, 451319, 1928363, 21211993]

約数ペア:

[(1, 21211993), (11, 1928363), (47, 451319), (89, 238337), (461, 46013), (517, 41029), (979, 21667), (4183, 5071)]