19813168

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30203}}^1$

素因数の和:30252

約数の個数: 20

約数和(自身を含む): 39325608

約数和(自身を除く): 19512440

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30203, 60406, 120812, 241624, 483248, 1238323, 2476646, 4953292, 9906584, 19813168]

約数ペア:

[(1, 19813168), (2, 9906584), (4, 4953292), (8, 2476646), (16, 1238323), (41, 483248), (82, 241624), (164, 120812), (328, 60406), (656, 30203)]