20003408

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30493}}^1$

素因数の和:30542

約数の個数: 20

約数和(自身を含む): 39703188

約数和(自身を除く): 19699780

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30493, 60986, 121972, 243944, 487888, 1250213, 2500426, 5000852, 10001704, 20003408]

約数ペア:

[(1, 20003408), (2, 10001704), (4, 5000852), (8, 2500426), (16, 1250213), (41, 487888), (82, 243944), (164, 121972), (328, 60986), (656, 30493)]