19903664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113089}}^1$

素因数の和:113108

約数の個数: 20

約数和(自身を含む): 42069480

約数和(自身を除く): 22165816

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113089, 226178, 452356, 904712, 1243979, 1809424, 2487958, 4975916, 9951832, 19903664]

約数ペア:

[(1, 19903664), (2, 9951832), (4, 4975916), (8, 2487958), (11, 1809424), (16, 1243979), (22, 904712), (44, 452356), (88, 226178), (176, 113089)]