210819021

素因数分解:

$3^1\times 7^2\times {\mathrm{1434143}}^1$

素因数の和:1434160

約数の個数: 12

約数和(自身を含む): 326984832

約数和(自身を除く): 116165811

約数列:

[1, 3, 7, 21, 49, 147, 1434143, 4302429, 10039001, 30117003, 70273007, 210819021]

約数ペア:

[(1, 210819021), (3, 70273007), (7, 30117003), (21, 10039001), (49, 4302429), (147, 1434143)]