18880796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{429109}}^1$

素因数の和:429124

約数の個数: 12

約数和(自身を含む): 36045240

約数和(自身を除く): 17164444

約数列:

[1, 2, 4, 11, 22, 44, 429109, 858218, 1716436, 4720199, 9440398, 18880796]

約数ペア:

[(1, 18880796), (2, 9440398), (4, 4720199), (11, 1716436), (22, 858218), (44, 429109)]