18806422

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1311

約数の個数: 16

約数和(自身を含む): 28904400

約数和(自身を除く): 10097978

約数列:

[1, 2, 61, 122, 139, 278, 1109, 2218, 8479, 16958, 67649, 135298, 154151, 308302, 9403211, 18806422]

約数ペア:

[(1, 18806422), (2, 9403211), (61, 308302), (122, 154151), (139, 135298), (278, 67649), (1109, 16958), (2218, 8479)]