21425337

素因数分解:

$3^3\times {\mathrm{509}}^1\times {\mathrm{1559}}^1$

素因数の和:2077

約数の個数: 16

約数和(自身を含む): 31824000

約数和(自身を除く): 10398663

約数列:

[1, 3, 9, 27, 509, 1527, 1559, 4581, 4677, 13743, 14031, 42093, 793531, 2380593, 7141779, 21425337]

約数ペア:

[(1, 21425337), (3, 7141779), (9, 2380593), (27, 793531), (509, 42093), (1527, 14031), (1559, 13743), (4581, 4677)]