21096471

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 31313520

約数和(自身を除く): 10217049

約数列:

[1, 3, 11, 33, 89, 121, 267, 363, 653, 979, 1959, 2937, 7183, 10769, 21549, 32307, 58117, 79013, 174351, 237039, 639287, 1917861, 7032157, 21096471]

約数ペア:

[(1, 21096471), (3, 7032157), (11, 1917861), (33, 639287), (89, 237039), (121, 174351), (267, 79013), (363, 58117), (653, 32307), (979, 21549), (1959, 10769), (2937, 7183)]