20485724

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5501}}^1$

素因数の和:5538

約数の個数: 36

約数和(自身を含む): 43905960

約数和(自身を除く): 23420236

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5501, 11002, 22004, 38507, 77014, 104519, 154028, 209038, 269549, 418076, 539098, 731633, 1078196, 1463266, 2926532, 5121431, 10242862, 20485724]

約数ペア:

[(1, 20485724), (2, 10242862), (4, 5121431), (7, 2926532), (14, 1463266), (19, 1078196), (28, 731633), (38, 539098), (49, 418076), (76, 269549), (98, 209038), (133, 154028), (196, 104519), (266, 77014), (532, 38507), (931, 22004), (1862, 11002), (3724, 5501)]