21739522

素因数分解:

$2^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{4993}}^1$

素因数の和:5313

約数の個数: 16

約数和(自身を含む): 37395072

約数和(自身を除く): 15655550

約数列:

[1, 2, 7, 14, 311, 622, 2177, 4354, 4993, 9986, 34951, 69902, 1552823, 3105646, 10869761, 21739522]

約数ペア:

[(1, 21739522), (2, 10869761), (7, 3105646), (14, 1552823), (311, 69902), (622, 34951), (2177, 9986), (4354, 4993)]