20853868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39199}}^1$

素因数の和:39229

約数の個数: 24

約数和(自身を含む): 43904000

約数和(自身を除く): 23050132

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39199, 78398, 156796, 274393, 548786, 744781, 1097572, 1489562, 2979124, 5213467, 10426934, 20853868]

約数ペア:

[(1, 20853868), (2, 10426934), (4, 5213467), (7, 2979124), (14, 1489562), (19, 1097572), (28, 744781), (38, 548786), (76, 274393), (133, 156796), (266, 78398), (532, 39199)]