219903981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{983}}^1\times {\mathrm{6779}}^1$

素因数の和:7776

約数の個数: 16

約数和(自身を含む): 320232960

約数和(自身を除く): 100328979

約数列:

[1, 3, 11, 33, 983, 2949, 6779, 10813, 20337, 32439, 74569, 223707, 6663757, 19991271, 73301327, 219903981]

約数ペア:

[(1, 219903981), (3, 73301327), (11, 19991271), (33, 6663757), (983, 223707), (2949, 74569), (6779, 32439), (10813, 20337)]