28380484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{645011}}^1$

素因数の和:645026

約数の個数: 12

約数和(自身を含む): 54181008

約数和(自身を除く): 25800524

約数列:

[1, 2, 4, 11, 22, 44, 645011, 1290022, 2580044, 7095121, 14190242, 28380484]

約数ペア:

[(1, 28380484), (2, 14190242), (4, 7095121), (11, 2580044), (22, 1290022), (44, 645011)]