21000657618

素因数分解:

$2^1\times 3^4\times {\mathrm{129633689}}^1$

素因数の和:129633703

約数の個数: 20

約数和(自身を含む): 47057029470

約数和(自身を除く): 26056371852

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129633689, 259267378, 388901067, 777802134, 1166703201, 2333406402, 3500109603, 7000219206, 10500328809, 21000657618]

約数ペア:

[(1, 21000657618), (2, 10500328809), (3, 7000219206), (6, 3500109603), (9, 2333406402), (18, 1166703201), (27, 777802134), (54, 388901067), (81, 259267378), (162, 129633689)]