19678724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 20138284

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 113, 197, 221, 226, 394, 442, 452, 788, 884, 1469, 1921, 2561, 2938, 3349, 3842, 5122, 5876, 6698, 7684, 10244, 13396, 22261, 24973, 43537, 44522, 49946, 87074, 89044, 99892, 174148, 289393, 378437, 578786, 756874, 1157572, 1513748, 4919681, 9839362, 19678724]

約数ペア:

[(1, 19678724), (2, 9839362), (4, 4919681), (13, 1513748), (17, 1157572), (26, 756874), (34, 578786), (52, 378437), (68, 289393), (113, 174148), (197, 99892), (221, 89044), (226, 87074), (394, 49946), (442, 44522), (452, 43537), (788, 24973), (884, 22261), (1469, 13396), (1921, 10244), (2561, 7684), (2938, 6698), (3349, 5876), (3842, 5122)]