28263884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{642361}}^1$

素因数の和:642376

約数の個数: 12

約数和(自身を含む): 53958408

約数和(自身を除く): 25694524

約数列:

[1, 2, 4, 11, 22, 44, 642361, 1284722, 2569444, 7065971, 14131942, 28263884]

約数ペア:

[(1, 28263884), (2, 14131942), (4, 7065971), (11, 2569444), (22, 1284722), (44, 642361)]