21167978612

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43735493}}^1$

素因数の和:43735519

約数の個数: 18

約数和(自身を含む): 40717744914

約数和(自身を除く): 19549766302

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43735493, 87470986, 174941972, 481090423, 962180846, 1924361692, 5291994653, 10583989306, 21167978612]

約数ペア:

[(1, 21167978612), (2, 10583989306), (4, 5291994653), (11, 1924361692), (22, 962180846), (44, 481090423), (121, 174941972), (242, 87470986), (484, 43735493)]