21230261

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 16

約数和(自身を含む): 23639616

約数和(自身を除く): 2409355

約数列:

[1, 13, 43, 163, 233, 559, 2119, 3029, 7009, 10019, 37979, 91117, 130247, 493727, 1633097, 21230261]

約数ペア:

[(1, 21230261), (13, 1633097), (43, 493727), (163, 130247), (233, 91117), (559, 37979), (2119, 10019), (3029, 7009)]