21205136

素因数分解:

$2^4\times {\mathrm{727}}^1\times {\mathrm{1823}}^1$

素因数の和:2558

約数の個数: 20

約数和(自身を含む): 41164032

約数和(自身を除く): 19958896

約数列:

[1, 2, 4, 8, 16, 727, 1454, 1823, 2908, 3646, 5816, 7292, 11632, 14584, 29168, 1325321, 2650642, 5301284, 10602568, 21205136]

約数ペア:

[(1, 21205136), (2, 10602568), (4, 5301284), (8, 2650642), (16, 1325321), (727, 29168), (1454, 14584), (1823, 11632), (2908, 7292), (3646, 5816)]