645366987

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{646013}}^1$

素因数の和:646059

約数の個数: 16

約数和(自身を含む): 981941280

約数和(自身を除く): 336574293

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 646013, 1938039, 5814117, 17442351, 23902481, 71707443, 215122329, 645366987]

約数ペア:

[(1, 645366987), (3, 215122329), (9, 71707443), (27, 23902481), (37, 17442351), (111, 5814117), (333, 1938039), (999, 646013)]