21245145

素因数分解:

$3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{3271}}^1$

素因数の和:3712

約数の個数: 16

約数和(自身を含む): 34081152

約数和(自身を除く): 12836007

約数列:

[1, 3, 5, 15, 433, 1299, 2165, 3271, 6495, 9813, 16355, 49065, 1416343, 4249029, 7081715, 21245145]

約数ペア:

[(1, 21245145), (3, 7081715), (5, 4249029), (15, 1416343), (433, 49065), (1299, 16355), (2165, 9813), (3271, 6495)]