21267310

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{40127}}^1$

素因数の和:40187

約数の個数: 16

約数和(自身を含む): 39004416

約数和(自身を除く): 17737106

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 40127, 80254, 200635, 401270, 2126731, 4253462, 10633655, 21267310]

約数ペア:

[(1, 21267310), (2, 10633655), (5, 4253462), (10, 2126731), (53, 401270), (106, 200635), (265, 80254), (530, 40127)]