21803222

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81967}}^1$

素因数の和:81995

約数の個数: 16

約数和(自身を含む): 39344640

約数和(自身を除く): 17541418

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81967, 163934, 573769, 1147538, 1557373, 3114746, 10901611, 21803222]

約数ペア:

[(1, 21803222), (2, 10901611), (7, 3114746), (14, 1557373), (19, 1147538), (38, 573769), (133, 163934), (266, 81967)]