21346515

素因数分解:

$3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1619}}^1$

素因数の和:1923

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 15803325

約数列:

[1, 3, 5, 9, 15, 45, 293, 879, 1465, 1619, 2637, 4395, 4857, 8095, 13185, 14571, 24285, 72855, 474367, 1423101, 2371835, 4269303, 7115505, 21346515]

約数ペア:

[(1, 21346515), (3, 7115505), (5, 4269303), (9, 2371835), (15, 1423101), (45, 474367), (293, 72855), (879, 24285), (1465, 14571), (1619, 13185), (2637, 8095), (4395, 4857)]