21118713

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{91423}}^1$

素因数の和:91444

約数の個数: 16

約数和(自身を含む): 35106816

約数和(自身を除く): 13988103

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 91423, 274269, 639961, 1005653, 1919883, 3016959, 7039571, 21118713]

約数ペア:

[(1, 21118713), (3, 7039571), (7, 3016959), (11, 1919883), (21, 1005653), (33, 639961), (77, 274269), (231, 91423)]