28778618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1979}}^1$

素因数の和:2653

約数の個数: 16

約数和(自身を含む): 47187360

約数和(自身を除く): 18408742

約数列:

[1, 2, 11, 22, 661, 1322, 1979, 3958, 7271, 14542, 21769, 43538, 1308119, 2616238, 14389309, 28778618]

約数ペア:

[(1, 28778618), (2, 14389309), (11, 2616238), (22, 1308119), (661, 43538), (1322, 21769), (1979, 14542), (3958, 7271)]