20955492

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 56825496

約数和(自身を除く): 35870004

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 97, 102, 153, 194, 204, 291, 306, 353, 388, 582, 612, 706, 873, 1059, 1164, 1412, 1649, 1746, 2118, 3177, 3298, 3492, 4236, 4947, 6001, 6354, 6596, 9894, 12002, 12708, 14841, 18003, 19788, 24004, 29682, 34241, 36006, 54009, 59364, 68482, 72012, 102723, 108018, 136964, 205446, 216036, 308169, 410892, 582097, 616338, 1164194, 1232676, 1746291, 2328388, 3492582, 5238873, 6985164, 10477746, 20955492]

約数ペア:

[(1, 20955492), (2, 10477746), (3, 6985164), (4, 5238873), (6, 3492582), (9, 2328388), (12, 1746291), (17, 1232676), (18, 1164194), (34, 616338), (36, 582097), (51, 410892), (68, 308169), (97, 216036), (102, 205446), (153, 136964), (194, 108018), (204, 102723), (291, 72012), (306, 68482), (353, 59364), (388, 54009), (582, 36006), (612, 34241), (706, 29682), (873, 24004), (1059, 19788), (1164, 18003), (1412, 14841), (1649, 12708), (1746, 12002), (2118, 9894), (3177, 6596), (3298, 6354), (3492, 6001), (4236, 4947)]