21491982

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{51913}}^1$

素因数の和:51944

約数の個数: 24

約数和(自身を含む): 48591504

約数和(自身を除く): 27099522

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 51913, 103826, 155739, 311478, 467217, 934434, 1193999, 2387998, 3581997, 7163994, 10745991, 21491982]

約数ペア:

[(1, 21491982), (2, 10745991), (3, 7163994), (6, 3581997), (9, 2387998), (18, 1193999), (23, 934434), (46, 467217), (69, 311478), (138, 155739), (207, 103826), (414, 51913)]