21266140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151901}}^1$

素因数の和:151917

約数の個数: 24

約数和(自身を含む): 51039072

約数和(自身を除く): 29772932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151901, 303802, 607604, 759505, 1063307, 1519010, 2126614, 3038020, 4253228, 5316535, 10633070, 21266140]

約数ペア:

[(1, 21266140), (2, 10633070), (4, 5316535), (5, 4253228), (7, 3038020), (10, 2126614), (14, 1519010), (20, 1063307), (28, 759505), (35, 607604), (70, 303802), (140, 151901)]