20980474

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{4603}}^1$

素因数の和:4701

約数の個数: 16

約数和(自身を含む): 32817312

約数和(自身を除く): 11836838

約数列:

[1, 2, 43, 53, 86, 106, 2279, 4558, 4603, 9206, 197929, 243959, 395858, 487918, 10490237, 20980474]

約数ペア:

[(1, 20980474), (2, 10490237), (43, 487918), (53, 395858), (86, 243959), (106, 197929), (2279, 9206), (4558, 4603)]