20447763

素因数分解:

$3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{3593}}^1$

素因数の和:3874

約数の個数: 16

約数和(自身を含む): 31282176

約数和(自身を除く): 10834413

約数列:

[1, 3, 7, 21, 271, 813, 1897, 3593, 5691, 10779, 25151, 75453, 973703, 2921109, 6815921, 20447763]

約数ペア:

[(1, 20447763), (3, 6815921), (7, 2921109), (21, 973703), (271, 75453), (813, 25151), (1897, 10779), (3593, 5691)]