7928571

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 12810240

約数和(自身を除く): 4881669

約数列:

[1, 3, 7, 21, 29, 47, 87, 141, 203, 277, 329, 609, 831, 987, 1363, 1939, 4089, 5817, 8033, 9541, 13019, 24099, 28623, 39057, 56231, 91133, 168693, 273399, 377551, 1132653, 2642857, 7928571]

約数ペア:

[(1, 7928571), (3, 2642857), (7, 1132653), (21, 377551), (29, 273399), (47, 168693), (87, 91133), (141, 56231), (203, 39057), (277, 28623), (329, 24099), (609, 13019), (831, 9541), (987, 8033), (1363, 5817), (1939, 4089)]