17981778

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:906

約数の個数: 32

約数和(自身を含む): 37329984

約数和(自身を除く): 19348206

約数列:

[1, 2, 3, 6, 37, 74, 107, 111, 214, 222, 321, 642, 757, 1514, 2271, 3959, 4542, 7918, 11877, 23754, 28009, 56018, 80999, 84027, 161998, 168054, 242997, 485994, 2996963, 5993926, 8990889, 17981778]

約数ペア:

[(1, 17981778), (2, 8990889), (3, 5993926), (6, 2996963), (37, 485994), (74, 242997), (107, 168054), (111, 161998), (214, 84027), (222, 80999), (321, 56018), (642, 28009), (757, 23754), (1514, 11877), (2271, 7918), (3959, 4542)]