19710856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5209}}^1$

素因数の和:5269

約数の個数: 32

約数和(自身を含む): 41263200

約数和(自身を除く): 21552344

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5209, 10418, 20836, 41672, 57299, 114598, 223987, 229196, 447974, 458392, 895948, 1791896, 2463857, 4927714, 9855428, 19710856]

約数ペア:

[(1, 19710856), (2, 9855428), (4, 4927714), (8, 2463857), (11, 1791896), (22, 895948), (43, 458392), (44, 447974), (86, 229196), (88, 223987), (172, 114598), (344, 57299), (473, 41672), (946, 20836), (1892, 10418), (3784, 5209)]