20413708

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2089}}^1$

素因数の和:2449

約数の個数: 24

約数和(自身を含む): 40964000

約数和(自身を除く): 20550292

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2089, 2443, 4178, 4886, 8356, 9772, 14623, 29246, 58492, 729061, 1458122, 2916244, 5103427, 10206854, 20413708]

約数ペア:

[(1, 20413708), (2, 10206854), (4, 5103427), (7, 2916244), (14, 1458122), (28, 729061), (349, 58492), (698, 29246), (1396, 14623), (2089, 9772), (2443, 8356), (4178, 4886)]