21543736

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 41492880

約数和(自身を除く): 19949144

約数列:

[1, 2, 4, 8, 61, 122, 131, 244, 262, 337, 488, 524, 674, 1048, 1348, 2696, 7991, 15982, 20557, 31964, 41114, 44147, 63928, 82228, 88294, 164456, 176588, 353176, 2692967, 5385934, 10771868, 21543736]

約数ペア:

[(1, 21543736), (2, 10771868), (4, 5385934), (8, 2692967), (61, 353176), (122, 176588), (131, 164456), (244, 88294), (262, 82228), (337, 63928), (488, 44147), (524, 41114), (674, 31964), (1048, 20557), (1348, 15982), (2696, 7991)]