19672863

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3617}}^1$

素因数の和:3671

約数の個数: 24

約数和(自身を含む): 31346352

約数和(自身を除く): 11673489

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3617, 5439, 10851, 25319, 75957, 133829, 177233, 401487, 531699, 936803, 2810409, 6557621, 19672863]

約数ペア:

[(1, 19672863), (3, 6557621), (7, 2810409), (21, 936803), (37, 531699), (49, 401487), (111, 177233), (147, 133829), (259, 75957), (777, 25319), (1813, 10851), (3617, 5439)]