21685785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{787}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 38126592

約数和(自身を除く): 16440807

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 167, 501, 787, 835, 1837, 2361, 2505, 3935, 5511, 8657, 9185, 11805, 25971, 27555, 43285, 129855, 131429, 394287, 657145, 1445719, 1971435, 4337157, 7228595, 21685785]

約数ペア:

[(1, 21685785), (3, 7228595), (5, 4337157), (11, 1971435), (15, 1445719), (33, 657145), (55, 394287), (165, 131429), (167, 129855), (501, 43285), (787, 27555), (835, 25971), (1837, 11805), (2361, 9185), (2505, 8657), (3935, 5511)]