19946336

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 42039648

約数和(自身を除く): 22093312

約数列:

[1, 2, 4, 8, 16, 23, 32, 41, 46, 82, 92, 164, 184, 328, 368, 656, 661, 736, 943, 1312, 1322, 1886, 2644, 3772, 5288, 7544, 10576, 15088, 15203, 21152, 27101, 30176, 30406, 54202, 60812, 108404, 121624, 216808, 243248, 433616, 486496, 623323, 867232, 1246646, 2493292, 4986584, 9973168, 19946336]

約数ペア:

[(1, 19946336), (2, 9973168), (4, 4986584), (8, 2493292), (16, 1246646), (23, 867232), (32, 623323), (41, 486496), (46, 433616), (82, 243248), (92, 216808), (164, 121624), (184, 108404), (328, 60812), (368, 54202), (656, 30406), (661, 30176), (736, 27101), (943, 21152), (1312, 15203), (1322, 15088), (1886, 10576), (2644, 7544), (3772, 5288)]