51711219

素因数分解:

$3^2\times 7^2\times {\mathrm{117259}}^1$

素因数の和:117279

約数の個数: 18

約数和(自身を含む): 86889660

約数和(自身を除く): 35178441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 117259, 351777, 820813, 1055331, 2462439, 5745691, 7387317, 17237073, 51711219]

約数ペア:

[(1, 51711219), (3, 17237073), (7, 7387317), (9, 5745691), (21, 2462439), (49, 1055331), (63, 820813), (147, 351777), (441, 117259)]