21051306

素因数分解:

$2^1\times 3^3\times {\mathrm{389839}}^1$

素因数の和:389850

約数の個数: 16

約数和(自身を含む): 46780800

約数和(自身を除く): 25729494

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389839, 779678, 1169517, 2339034, 3508551, 7017102, 10525653, 21051306]

約数ペア:

[(1, 21051306), (2, 10525653), (3, 7017102), (6, 3508551), (9, 2339034), (18, 1169517), (27, 779678), (54, 389839)]