19904878

素因数分解:

$2^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{2011}}^1$

素因数の和:2128

約数の個数: 24

約数和(自身を含む): 35093304

約数和(自身を除く): 15188426

約数列:

[1, 2, 7, 14, 49, 98, 101, 202, 707, 1414, 2011, 4022, 4949, 9898, 14077, 28154, 98539, 197078, 203111, 406222, 1421777, 2843554, 9952439, 19904878]

約数ペア:

[(1, 19904878), (2, 9952439), (7, 2843554), (14, 1421777), (49, 406222), (98, 203111), (101, 197078), (202, 98539), (707, 28154), (1414, 14077), (2011, 9898), (4022, 4949)]