20010906

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 44686824

約数和(自身を除く): 24675918

約数列:

[1, 2, 3, 6, 9, 18, 73, 97, 146, 157, 194, 219, 291, 314, 438, 471, 582, 657, 873, 942, 1314, 1413, 1746, 2826, 7081, 11461, 14162, 15229, 21243, 22922, 30458, 34383, 42486, 45687, 63729, 68766, 91374, 103149, 127458, 137061, 206298, 274122, 1111717, 2223434, 3335151, 6670302, 10005453, 20010906]

約数ペア:

[(1, 20010906), (2, 10005453), (3, 6670302), (6, 3335151), (9, 2223434), (18, 1111717), (73, 274122), (97, 206298), (146, 137061), (157, 127458), (194, 103149), (219, 91374), (291, 68766), (314, 63729), (438, 45687), (471, 42486), (582, 34383), (657, 30458), (873, 22922), (942, 21243), (1314, 15229), (1413, 14162), (1746, 11461), (2826, 7081)]