20125945281

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{74779}}^1$

素因数の和:74965

約数の個数: 32

約数和(自身を含む): 29615272960

約数和(自身を除く): 9489327679

約数列:

[1, 3, 13, 39, 67, 103, 201, 309, 871, 1339, 2613, 4017, 6901, 20703, 74779, 89713, 224337, 269139, 972127, 2916381, 5010193, 7702237, 15030579, 23106711, 65132509, 100129081, 195397527, 300387243, 516049879, 1548149637, 6708648427, 20125945281]

約数ペア:

[(1, 20125945281), (3, 6708648427), (13, 1548149637), (39, 516049879), (67, 300387243), (103, 195397527), (201, 100129081), (309, 65132509), (871, 23106711), (1339, 15030579), (2613, 7702237), (4017, 5010193), (6901, 2916381), (20703, 972127), (74779, 269139), (89713, 224337)]