21105777

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{91367}}^1$

素因数の和:91388

約数の個数: 16

約数和(自身を含む): 35085312

約数和(自身を除く): 13979535

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 91367, 274101, 639569, 1005037, 1918707, 3015111, 7035259, 21105777]

約数ペア:

[(1, 21105777), (3, 7035259), (7, 3015111), (11, 1918707), (21, 1005037), (33, 639569), (77, 274101), (231, 91367)]