20497323

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 34490880

約数和(自身を除く): 13993557

約数列:

[1, 3, 7, 11, 21, 33, 77, 89, 231, 267, 623, 979, 997, 1869, 2937, 2991, 6853, 6979, 10967, 20559, 20937, 32901, 76769, 88733, 230307, 266199, 621131, 976063, 1863393, 2928189, 6832441, 20497323]

約数ペア:

[(1, 20497323), (3, 6832441), (7, 2928189), (11, 1863393), (21, 976063), (33, 621131), (77, 266199), (89, 230307), (231, 88733), (267, 76769), (623, 32901), (979, 20937), (997, 20559), (1869, 10967), (2937, 6979), (2991, 6853)]