19948304

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:743

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 20549104

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 647, 656, 752, 1294, 1927, 2588, 3854, 5176, 7708, 10352, 15416, 26527, 30409, 30832, 53054, 60818, 106108, 121636, 212216, 243272, 424432, 486544, 1246769, 2493538, 4987076, 9974152, 19948304]

約数ペア:

[(1, 19948304), (2, 9974152), (4, 4987076), (8, 2493538), (16, 1246769), (41, 486544), (47, 424432), (82, 243272), (94, 212216), (164, 121636), (188, 106108), (328, 60818), (376, 53054), (647, 30832), (656, 30409), (752, 26527), (1294, 15416), (1927, 10352), (2588, 7708), (3854, 5176)]