21844220

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3943}}^1$

素因数の和:4229

約数の個数: 24

約数和(自身を含む): 46050144

約数和(自身を除く): 24205924

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3943, 5540, 7886, 15772, 19715, 39430, 78860, 1092211, 2184422, 4368844, 5461055, 10922110, 21844220]

約数ペア:

[(1, 21844220), (2, 10922110), (4, 5461055), (5, 4368844), (10, 2184422), (20, 1092211), (277, 78860), (554, 39430), (1108, 19715), (1385, 15772), (2770, 7886), (3943, 5540)]