18188984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1487}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 19308616

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 139, 278, 556, 1112, 1487, 1529, 2974, 3058, 5948, 6116, 11896, 12232, 16357, 32714, 65428, 130856, 206693, 413386, 826772, 1653544, 2273623, 4547246, 9094492, 18188984]

約数ペア:

[(1, 18188984), (2, 9094492), (4, 4547246), (8, 2273623), (11, 1653544), (22, 826772), (44, 413386), (88, 206693), (139, 130856), (278, 65428), (556, 32714), (1112, 16357), (1487, 12232), (1529, 11896), (2974, 6116), (3058, 5948)]