20116509

素因数分解:

$3^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 31376448

約数和(自身を除く): 11259939

約数列:

[1, 3, 7, 21, 49, 147, 281, 487, 843, 1461, 1967, 3409, 5901, 10227, 13769, 23863, 41307, 71589, 136847, 410541, 957929, 2873787, 6705503, 20116509]

約数ペア:

[(1, 20116509), (3, 6705503), (7, 2873787), (21, 957929), (49, 410541), (147, 136847), (281, 71589), (487, 41307), (843, 23863), (1461, 13769), (1967, 10227), (3409, 5901)]