18978506

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2149

約数の個数: 16

約数和(自身を含む): 29376000

約数和(自身を除く): 10397494

約数列:

[1, 2, 47, 94, 101, 202, 1999, 3998, 4747, 9494, 93953, 187906, 201899, 403798, 9489253, 18978506]

約数ペア:

[(1, 18978506), (2, 9489253), (47, 403798), (94, 201899), (101, 187906), (202, 93953), (1999, 9494), (3998, 4747)]