21174232

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61553}}^1$

素因数の和:61602

約数の個数: 16

約数和(自身を含む): 40625640

約数和(自身を除く): 19451408

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61553, 123106, 246212, 492424, 2646779, 5293558, 10587116, 21174232]

約数ペア:

[(1, 21174232), (2, 10587116), (4, 5293558), (8, 2646779), (43, 492424), (86, 246212), (172, 123106), (344, 61553)]