18652712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 38957940

約数和(自身を除く): 20305228

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 97, 104, 172, 194, 344, 388, 559, 776, 1118, 1261, 1849, 2236, 2522, 3698, 4171, 4472, 5044, 7396, 8342, 10088, 14792, 16684, 24037, 33368, 48074, 54223, 96148, 108446, 179353, 192296, 216892, 358706, 433784, 717412, 1434824, 2331589, 4663178, 9326356, 18652712]

約数ペア:

[(1, 18652712), (2, 9326356), (4, 4663178), (8, 2331589), (13, 1434824), (26, 717412), (43, 433784), (52, 358706), (86, 216892), (97, 192296), (104, 179353), (172, 108446), (194, 96148), (344, 54223), (388, 48074), (559, 33368), (776, 24037), (1118, 16684), (1261, 14792), (1849, 10088), (2236, 8342), (2522, 7396), (3698, 5044), (4171, 4472)]