18189818

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1309

約数の個数: 16

約数和(自身を含む): 27972000

約数和(自身を除く): 9782182

約数列:

[1, 2, 59, 118, 139, 278, 1109, 2218, 8201, 16402, 65431, 130862, 154151, 308302, 9094909, 18189818]

約数ペア:

[(1, 18189818), (2, 9094909), (59, 308302), (118, 154151), (139, 130862), (278, 65431), (1109, 16402), (2218, 8201)]