21498711

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1279}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 30965760

約数和(自身を除く): 9467049

約数列:

[1, 3, 13, 39, 431, 1279, 1293, 3837, 5603, 16627, 16809, 49881, 551249, 1653747, 7166237, 21498711]

約数ペア:

[(1, 21498711), (3, 7166237), (13, 1653747), (39, 551249), (431, 49881), (1279, 16809), (1293, 16627), (3837, 5603)]