19894424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{683}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 40875840

約数和(自身を除く): 20981416

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 331, 662, 683, 1324, 1366, 2648, 2732, 3641, 5464, 7282, 7513, 14564, 15026, 29128, 30052, 60104, 226073, 452146, 904292, 1808584, 2486803, 4973606, 9947212, 19894424]

約数ペア:

[(1, 19894424), (2, 9947212), (4, 4973606), (8, 2486803), (11, 1808584), (22, 904292), (44, 452146), (88, 226073), (331, 60104), (662, 30052), (683, 29128), (1324, 15026), (1366, 14564), (2648, 7513), (2732, 7282), (3641, 5464)]