21742070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2371}}^1$

素因数の和:2516

約数の個数: 32

約数和(自身を含む): 45086976

約数和(自身を除く): 23344906

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 2371, 4585, 4742, 9170, 11855, 16597, 23710, 33194, 82985, 165970, 310601, 621202, 1553005, 2174207, 3106010, 4348414, 10871035, 21742070]

約数ペア:

[(1, 21742070), (2, 10871035), (5, 4348414), (7, 3106010), (10, 2174207), (14, 1553005), (35, 621202), (70, 310601), (131, 165970), (262, 82985), (655, 33194), (917, 23710), (1310, 16597), (1834, 11855), (2371, 9170), (4585, 4742)]