21978804

素因数分解:

$2^2\times 3^1\times {\mathrm{919}}^1\times {\mathrm{1993}}^1$

素因数の和:2919

約数の個数: 24

約数和(自身を含む): 51365440

約数和(自身を除く): 29386636

約数列:

[1, 2, 3, 4, 6, 12, 919, 1838, 1993, 2757, 3676, 3986, 5514, 5979, 7972, 11028, 11958, 23916, 1831567, 3663134, 5494701, 7326268, 10989402, 21978804]

約数ペア:

[(1, 21978804), (2, 10989402), (3, 7326268), (4, 5494701), (6, 3663134), (12, 1831567), (919, 23916), (1838, 11958), (1993, 11028), (2757, 7972), (3676, 5979), (3986, 5514)]