19900716

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1409}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 51166080

約数和(自身を除く): 31265364

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 107, 132, 214, 321, 428, 642, 1177, 1284, 1409, 2354, 2818, 3531, 4227, 4708, 5636, 7062, 8454, 14124, 15499, 16908, 30998, 46497, 61996, 92994, 150763, 185988, 301526, 452289, 603052, 904578, 1658393, 1809156, 3316786, 4975179, 6633572, 9950358, 19900716]

約数ペア:

[(1, 19900716), (2, 9950358), (3, 6633572), (4, 4975179), (6, 3316786), (11, 1809156), (12, 1658393), (22, 904578), (33, 603052), (44, 452289), (66, 301526), (107, 185988), (132, 150763), (214, 92994), (321, 61996), (428, 46497), (642, 30998), (1177, 16908), (1284, 15499), (1409, 14124), (2354, 8454), (2818, 7062), (3531, 5636), (4227, 4708)]