278320161

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{123863}}^1$

素因数の和:123980

約数の個数: 16

約数和(自身を含む): 428073984

約数和(自身を除く): 149753823

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 123863, 371589, 867041, 2601123, 13253341, 39760023, 92773387, 278320161]

約数ペア:

[(1, 278320161), (3, 92773387), (7, 39760023), (21, 13253341), (107, 2601123), (321, 867041), (749, 371589), (2247, 123863)]