21263620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151883}}^1$

素因数の和:151899

約数の個数: 24

約数和(自身を含む): 51033024

約数和(自身を除く): 29769404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151883, 303766, 607532, 759415, 1063181, 1518830, 2126362, 3037660, 4252724, 5315905, 10631810, 21263620]

約数ペア:

[(1, 21263620), (2, 10631810), (4, 5315905), (5, 4252724), (7, 3037660), (10, 2126362), (14, 1518830), (20, 1063181), (28, 759415), (35, 607532), (70, 303766), (140, 151883)]