21391226

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{5261}}^1$

素因数の和:5389

約数の個数: 16

約数和(自身を含む): 34097760

約数和(自身を除く): 12706534

約数列:

[1, 2, 19, 38, 107, 214, 2033, 4066, 5261, 10522, 99959, 199918, 562927, 1125854, 10695613, 21391226]

約数ペア:

[(1, 21391226), (2, 10695613), (19, 1125854), (38, 562927), (107, 199918), (214, 99959), (2033, 10522), (4066, 5261)]