21381382

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 15196922

約数列:

[1, 2, 11, 22, 31, 62, 107, 214, 293, 341, 586, 682, 1177, 2354, 3223, 3317, 6446, 6634, 9083, 18166, 31351, 36487, 62702, 72974, 99913, 199826, 344861, 689722, 971881, 1943762, 10690691, 21381382]

約数ペア:

[(1, 21381382), (2, 10690691), (11, 1943762), (22, 971881), (31, 689722), (62, 344861), (107, 199826), (214, 99913), (293, 72974), (341, 62702), (586, 36487), (682, 31351), (1177, 18166), (2354, 9083), (3223, 6634), (3317, 6446)]