1621056573

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557639}}^1$

素因数の和:557681

約数の個数: 24

約数和(自身を含む): 2609755200

約数和(自身を除く): 988698627

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 557639, 1672917, 5018751, 9479863, 10595141, 28439589, 31785423, 85318767, 95356269, 180117397, 540352191, 1621056573]

約数ペア:

[(1, 1621056573), (3, 540352191), (9, 180117397), (17, 95356269), (19, 85318767), (51, 31785423), (57, 28439589), (153, 10595141), (171, 9479863), (323, 5018751), (969, 1672917), (2907, 557639)]