20712492

素因数分解:

$2^2\times 3^2\times {\mathrm{499}}^1\times {\mathrm{1153}}^1$

素因数の和:1662

約数の個数: 36

約数和(自身を含む): 52507000

約数和(自身を除く): 31794508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 499, 998, 1153, 1497, 1996, 2306, 2994, 3459, 4491, 4612, 5988, 6918, 8982, 10377, 13836, 17964, 20754, 41508, 575347, 1150694, 1726041, 2301388, 3452082, 5178123, 6904164, 10356246, 20712492]

約数ペア:

[(1, 20712492), (2, 10356246), (3, 6904164), (4, 5178123), (6, 3452082), (9, 2301388), (12, 1726041), (18, 1150694), (36, 575347), (499, 41508), (998, 20754), (1153, 17964), (1497, 13836), (1996, 10377), (2306, 8982), (2994, 6918), (3459, 5988), (4491, 4612)]