21000478604

素因数分解:

$2^2\times 7^2\times {\mathrm{107145299}}^1$

素因数の和:107145317

約数の個数: 18

約数和(自身を含む): 42750974700

約数和(自身を除く): 21750496096

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 107145299, 214290598, 428581196, 750017093, 1500034186, 3000068372, 5250119651, 10500239302, 21000478604]

約数ペア:

[(1, 21000478604), (2, 10500239302), (4, 5250119651), (7, 3000068372), (14, 1500034186), (28, 750017093), (49, 428581196), (98, 214290598), (196, 107145299)]