51131715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 85059072

約数和(自身を除く): 33927357

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 615, 1065, 1171, 2911, 3513, 5855, 8733, 14555, 17565, 43665, 48011, 83141, 144033, 240055, 249423, 415705, 720165, 1247115, 3408781, 10226343, 17043905, 51131715]

約数ペア:

[(1, 51131715), (3, 17043905), (5, 10226343), (15, 3408781), (41, 1247115), (71, 720165), (123, 415705), (205, 249423), (213, 240055), (355, 144033), (615, 83141), (1065, 48011), (1171, 43665), (2911, 17565), (3513, 14555), (5855, 8733)]