19902212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{1181}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 38126592

約数和(自身を除く): 18224380

約数列:

[1, 2, 4, 11, 22, 44, 383, 766, 1181, 1532, 2362, 4213, 4724, 8426, 12991, 16852, 25982, 51964, 452323, 904646, 1809292, 4975553, 9951106, 19902212]

約数ペア:

[(1, 19902212), (2, 9951106), (4, 4975553), (11, 1809292), (22, 904646), (44, 452323), (383, 51964), (766, 25982), (1181, 16852), (1532, 12991), (2362, 8426), (4213, 4724)]