18921112

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17783}}^1$

素因数の和:17815

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 23760488

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 17783, 35566, 71132, 124481, 142264, 248962, 337877, 497924, 675754, 995848, 1351508, 2365139, 2703016, 4730278, 9460556, 18921112]

約数ペア:

[(1, 18921112), (2, 9460556), (4, 4730278), (7, 2703016), (8, 2365139), (14, 1351508), (19, 995848), (28, 675754), (38, 497924), (56, 337877), (76, 248962), (133, 142264), (152, 124481), (266, 71132), (532, 35566), (1064, 17783)]