19992236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{8573}}^1$

素因数の和:8641

約数の個数: 24

約数和(自身を含む): 38891664

約数和(自身を除く): 18899428

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 8573, 17146, 34292, 94303, 188606, 377212, 454369, 908738, 1817476, 4998059, 9996118, 19992236]

約数ペア:

[(1, 19992236), (2, 9996118), (4, 4998059), (11, 1817476), (22, 908738), (44, 454369), (53, 377212), (106, 188606), (212, 94303), (583, 34292), (1166, 17146), (2332, 8573)]