20899986

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^2\times {\mathrm{691}}^1$

素因数の和:838

約数の個数: 24

約数和(自身を含む): 42458352

約数和(自身を除く): 21558366

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 691, 1382, 2073, 4146, 5041, 10082, 15123, 30246, 49061, 98122, 147183, 294366, 3483331, 6966662, 10449993, 20899986]

約数ペア:

[(1, 20899986), (2, 10449993), (3, 6966662), (6, 3483331), (71, 294366), (142, 147183), (213, 98122), (426, 49061), (691, 30246), (1382, 15123), (2073, 10082), (4146, 5041)]