21364895

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 26580960

約数和(自身を除く): 5216065

約数列:

[1, 5, 41, 89, 205, 445, 1171, 3649, 5855, 18245, 48011, 104219, 240055, 521095, 4272979, 21364895]

約数ペア:

[(1, 21364895), (5, 4272979), (41, 521095), (89, 240055), (205, 104219), (445, 48011), (1171, 18245), (3649, 5855)]