1968993999

素因数分解:

$3^2\times 7^2\times {\mathrm{4464839}}^1$

素因数の和:4464859

約数の個数: 18

約数和(自身を含む): 3308446440

約数和(自身を除く): 1339452441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4464839, 13394517, 31253873, 40183551, 93761619, 218777111, 281284857, 656331333, 1968993999]

約数ペア:

[(1, 1968993999), (3, 656331333), (7, 281284857), (9, 218777111), (21, 93761619), (49, 40183551), (63, 31253873), (147, 13394517), (441, 4464839)]