21521204

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 38578848

約数和(自身を除く): 17057644

約数列:

[1, 2, 4, 67, 131, 134, 262, 268, 524, 613, 1226, 2452, 8777, 17554, 35108, 41071, 80303, 82142, 160606, 164284, 321212, 5380301, 10760602, 21521204]

約数ペア:

[(1, 21521204), (2, 10760602), (4, 5380301), (67, 321212), (131, 164284), (134, 160606), (262, 82142), (268, 80303), (524, 41071), (613, 35108), (1226, 17554), (2452, 8777)]