20803797

素因数分解:

$3^4\times 7^1\times {\mathrm{36691}}^1$

素因数の和:36710

約数の個数: 20

約数和(自身を含む): 35517856

約数和(自身を除く): 14714059

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36691, 110073, 256837, 330219, 770511, 990657, 2311533, 2971971, 6934599, 20803797]

約数ペア:

[(1, 20803797), (3, 6934599), (7, 2971971), (9, 2311533), (21, 990657), (27, 770511), (63, 330219), (81, 256837), (189, 110073), (567, 36691)]