19496972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40283}}^1$

素因数の和:40309

約数の個数: 18

約数和(自身を含む): 37504404

約数和(自身を除く): 18007432

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40283, 80566, 161132, 443113, 886226, 1772452, 4874243, 9748486, 19496972]

約数ペア:

[(1, 19496972), (2, 9748486), (4, 4874243), (11, 1772452), (22, 886226), (44, 443113), (121, 161132), (242, 80566), (484, 40283)]