3974012

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 8064000

約数和(自身を除く): 4089988

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 1999, 3998, 7996, 13993, 27986, 55972, 141929, 283858, 567716, 993503, 1987006, 3974012]

約数ペア:

[(1, 3974012), (2, 1987006), (4, 993503), (7, 567716), (14, 283858), (28, 141929), (71, 55972), (142, 27986), (284, 13993), (497, 7996), (994, 3998), (1988, 1999)]