21337065

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3461}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 37264968

約数和(自身を除く): 15927903

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3461, 6165, 10383, 17305, 31149, 51915, 155745, 474157, 1422471, 2370785, 4267413, 7112355, 21337065]

約数ペア:

[(1, 21337065), (3, 7112355), (5, 4267413), (9, 2370785), (15, 1422471), (45, 474157), (137, 155745), (411, 51915), (685, 31149), (1233, 17305), (2055, 10383), (3461, 6165)]