20001984898

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2221949}}^1$

素因数の和:2222601

約数の個数: 16

約数和(自身を含む): 34342459200

約数和(自身を除く): 14340474302

約数列:

[1, 2, 7, 14, 643, 1286, 4501, 9002, 2221949, 4443898, 15553643, 31107286, 1428713207, 2857426414, 10000992449, 20001984898]

約数ペア:

[(1, 20001984898), (2, 10000992449), (7, 2857426414), (14, 1428713207), (643, 31107286), (1286, 15553643), (4501, 4443898), (9002, 2221949)]