21604912

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8387}}^1$

素因数の和:8425

約数の個数: 40

約数和(自身を含む): 49925376

約数和(自身を除く): 28320464

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8387, 16774, 33548, 58709, 67096, 117418, 134192, 192901, 234836, 385802, 469672, 771604, 939344, 1350307, 1543208, 2700614, 3086416, 5401228, 10802456, 21604912]

約数ペア:

[(1, 21604912), (2, 10802456), (4, 5401228), (7, 3086416), (8, 2700614), (14, 1543208), (16, 1350307), (23, 939344), (28, 771604), (46, 469672), (56, 385802), (92, 234836), (112, 192901), (161, 134192), (184, 117418), (322, 67096), (368, 58709), (644, 33548), (1288, 16774), (2576, 8387)]