19987572

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2857}}^1$

素因数の和:2928

約数の個数: 48

約数和(自身を含む): 51855552

約数和(自身を除く): 31867980

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 53, 66, 106, 132, 159, 212, 318, 583, 636, 1166, 1749, 2332, 2857, 3498, 5714, 6996, 8571, 11428, 17142, 31427, 34284, 62854, 94281, 125708, 151421, 188562, 302842, 377124, 454263, 605684, 908526, 1665631, 1817052, 3331262, 4996893, 6662524, 9993786, 19987572]

約数ペア:

[(1, 19987572), (2, 9993786), (3, 6662524), (4, 4996893), (6, 3331262), (11, 1817052), (12, 1665631), (22, 908526), (33, 605684), (44, 454263), (53, 377124), (66, 302842), (106, 188562), (132, 151421), (159, 125708), (212, 94281), (318, 62854), (583, 34284), (636, 31427), (1166, 17142), (1749, 11428), (2332, 8571), (2857, 6996), (3498, 5714)]