399912399

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{32939}}^1$

素因数の和:33035

約数の個数: 24

約数和(自身を含む): 616636800

約数和(自身を除く): 216724401

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 32939, 98817, 296451, 625841, 1877523, 2338669, 5632569, 7016007, 21048021, 44434711, 133304133, 399912399]

約数ペア:

[(1, 399912399), (3, 133304133), (9, 44434711), (19, 21048021), (57, 7016007), (71, 5632569), (171, 2338669), (213, 1877523), (639, 625841), (1349, 296451), (4047, 98817), (12141, 32939)]