251983871

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{3491}}^1$

素因数の和:3670

約数の個数: 16

約数和(自身を含む): 276566400

約数和(自身を除く): 24582529

約数列:

[1, 19, 29, 131, 551, 2489, 3491, 3799, 66329, 72181, 101239, 457321, 1923541, 8689099, 13262309, 251983871]

約数ペア:

[(1, 251983871), (19, 13262309), (29, 8689099), (131, 1923541), (551, 457321), (2489, 101239), (3491, 72181), (3799, 66329)]