21811234

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1997}}^1$

素因数の和:2169

約数の個数: 16

約数和(自身を含む): 33758208

約数和(自身を除く): 11946974

約数列:

[1, 2, 43, 86, 127, 254, 1997, 3994, 5461, 10922, 85871, 171742, 253619, 507238, 10905617, 21811234]

約数ペア:

[(1, 21811234), (2, 10905617), (43, 507238), (86, 253619), (127, 171742), (254, 85871), (1997, 10922), (3994, 5461)]