18938216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{701}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 19980664

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 307, 614, 701, 1228, 1402, 2456, 2804, 3377, 5608, 6754, 7711, 13508, 15422, 27016, 30844, 61688, 215207, 430414, 860828, 1721656, 2367277, 4734554, 9469108, 18938216]

約数ペア:

[(1, 18938216), (2, 9469108), (4, 4734554), (8, 2367277), (11, 1721656), (22, 860828), (44, 430414), (88, 215207), (307, 61688), (614, 30844), (701, 27016), (1228, 15422), (1402, 13508), (2456, 7711), (2804, 6754), (3377, 5608)]