19556576

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:963

約数の個数: 48

約数和(自身を含む): 42293664

約数和(自身を除く): 22737088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 104, 106, 208, 212, 416, 424, 689, 848, 887, 1378, 1696, 1774, 2756, 3548, 5512, 7096, 11024, 11531, 14192, 22048, 23062, 28384, 46124, 47011, 92248, 94022, 184496, 188044, 368992, 376088, 611143, 752176, 1222286, 1504352, 2444572, 4889144, 9778288, 19556576]

約数ペア:

[(1, 19556576), (2, 9778288), (4, 4889144), (8, 2444572), (13, 1504352), (16, 1222286), (26, 752176), (32, 611143), (52, 376088), (53, 368992), (104, 188044), (106, 184496), (208, 94022), (212, 92248), (416, 47011), (424, 46124), (689, 28384), (848, 23062), (887, 22048), (1378, 14192), (1696, 11531), (1774, 11024), (2756, 7096), (3548, 5512)]