19876444

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5107}}^1$

素因数の和:5257

約数の個数: 24

約数和(自身を含む): 40046720

約数和(自身を除く): 20170276

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5107, 10214, 20428, 35749, 71498, 142996, 709873, 1419746, 2839492, 4969111, 9938222, 19876444]

約数ペア:

[(1, 19876444), (2, 9938222), (4, 4969111), (7, 2839492), (14, 1419746), (28, 709873), (139, 142996), (278, 71498), (556, 35749), (973, 20428), (1946, 10214), (3892, 5107)]