205257913

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{829}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 248282880

約数和(自身を除く): 43024967

約数列:

[1, 7, 31, 49, 163, 217, 829, 1141, 1519, 5053, 5803, 7987, 25699, 35371, 40621, 135127, 179893, 247597, 945889, 1259251, 4188937, 6621223, 29322559, 205257913]

約数ペア:

[(1, 205257913), (7, 29322559), (31, 6621223), (49, 4188937), (163, 1259251), (217, 945889), (829, 247597), (1141, 179893), (1519, 135127), (5053, 40621), (5803, 35371), (7987, 25699)]