21135843

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21157}}^1$

素因数の和:21203

約数の個数: 16

約数和(自身を含む): 32160160

約数和(自身を除く): 11024317

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21157, 63471, 190413, 571239, 782809, 2348427, 7045281, 21135843]

約数ペア:

[(1, 21135843), (3, 7045281), (9, 2348427), (27, 782809), (37, 571239), (111, 190413), (333, 63471), (999, 21157)]