399219909

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{61409}}^1$

素因数の和:61620

約数の個数: 16

約数和(自身を含む): 583640640

約数和(自身を除く): 184420731

約数列:

[1, 3, 11, 33, 197, 591, 2167, 6501, 61409, 184227, 675499, 2026497, 12097573, 36292719, 133073303, 399219909]

約数ペア:

[(1, 399219909), (3, 133073303), (11, 36292719), (33, 12097573), (197, 2026497), (591, 675499), (2167, 184227), (6501, 61409)]