18139222

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1131

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 9681578

約数列:

[1, 2, 71, 139, 142, 278, 919, 1838, 9869, 19738, 65249, 127741, 130498, 255482, 9069611, 18139222]

約数ペア:

[(1, 18139222), (2, 9069611), (71, 255482), (139, 130498), (142, 127741), (278, 65249), (919, 19738), (1838, 9869)]