21743715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1319}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 18299805

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 157, 471, 785, 1099, 1319, 2355, 3297, 3957, 5495, 6595, 9233, 16485, 19785, 27699, 46165, 138495, 207083, 621249, 1035415, 1449581, 3106245, 4348743, 7247905, 21743715]

約数ペア:

[(1, 21743715), (3, 7247905), (5, 4348743), (7, 3106245), (15, 1449581), (21, 1035415), (35, 621249), (105, 207083), (157, 138495), (471, 46165), (785, 27699), (1099, 19785), (1319, 16485), (2355, 9233), (3297, 6595), (3957, 5495)]