21700197

素因数分解:

$3^3\times {\mathrm{509}}^1\times {\mathrm{1579}}^1$

素因数の和:2097

約数の個数: 16

約数和(自身を含む): 32232000

約数和(自身を除く): 10531803

約数列:

[1, 3, 9, 27, 509, 1527, 1579, 4581, 4737, 13743, 14211, 42633, 803711, 2411133, 7233399, 21700197]

約数ペア:

[(1, 21700197), (3, 7233399), (9, 2411133), (27, 803711), (509, 42633), (1527, 14211), (1579, 13743), (4581, 4737)]