19948786

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 37604952

約数和(自身を除く): 17656166

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 121, 143, 187, 221, 242, 286, 373, 374, 442, 746, 1573, 2057, 2431, 3146, 4103, 4114, 4849, 4862, 6341, 8206, 9698, 12682, 26741, 45133, 53339, 53482, 69751, 82433, 90266, 106678, 139502, 164866, 586729, 767261, 906763, 1173458, 1534522, 1813526, 9974393, 19948786]

約数ペア:

[(1, 19948786), (2, 9974393), (11, 1813526), (13, 1534522), (17, 1173458), (22, 906763), (26, 767261), (34, 586729), (121, 164866), (143, 139502), (187, 106678), (221, 90266), (242, 82433), (286, 69751), (373, 53482), (374, 53339), (442, 45133), (746, 26741), (1573, 12682), (2057, 9698), (2431, 8206), (3146, 6341), (4103, 4862), (4114, 4849)]