27857985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1021}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 47682432

約数和(自身を除く): 19824447

約数列:

[1, 3, 5, 15, 17, 51, 85, 107, 255, 321, 535, 1021, 1605, 1819, 3063, 5105, 5457, 9095, 15315, 17357, 27285, 52071, 86785, 109247, 260355, 327741, 546235, 1638705, 1857199, 5571597, 9285995, 27857985]

約数ペア:

[(1, 27857985), (3, 9285995), (5, 5571597), (15, 1857199), (17, 1638705), (51, 546235), (85, 327741), (107, 260355), (255, 109247), (321, 86785), (535, 52071), (1021, 27285), (1605, 17357), (1819, 15315), (3063, 9095), (5105, 5457)]