21785748

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 52731840

約数和(自身を除く): 30946092

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 139, 148, 222, 278, 353, 417, 444, 556, 706, 834, 1059, 1412, 1668, 2118, 4236, 5143, 10286, 13061, 15429, 20572, 26122, 30858, 39183, 49067, 52244, 61716, 78366, 98134, 147201, 156732, 196268, 294402, 588804, 1815479, 3630958, 5446437, 7261916, 10892874, 21785748]

約数ペア:

[(1, 21785748), (2, 10892874), (3, 7261916), (4, 5446437), (6, 3630958), (12, 1815479), (37, 588804), (74, 294402), (111, 196268), (139, 156732), (148, 147201), (222, 98134), (278, 78366), (353, 61716), (417, 52244), (444, 49067), (556, 39183), (706, 30858), (834, 26122), (1059, 20572), (1412, 15429), (1668, 13061), (2118, 10286), (4236, 5143)]