21516472

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{65599}}^1$

素因数の和:65646

約数の個数: 16

約数和(自身を含む): 41328000

約数和(自身を除く): 19811528

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 65599, 131198, 262396, 524792, 2689559, 5379118, 10758236, 21516472]

約数ペア:

[(1, 21516472), (2, 10758236), (4, 5379118), (8, 2689559), (41, 524792), (82, 262396), (164, 131198), (328, 65599)]