641520009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{288583}}^1$

素因数の和:288621

約数の個数: 24

約数和(自身を含む): 1050445760

約数和(自身を除く): 408925751

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 288583, 865749, 2597247, 3751579, 5483077, 11254737, 16449231, 33764211, 49347693, 71280001, 213840003, 641520009]

約数ペア:

[(1, 641520009), (3, 213840003), (9, 71280001), (13, 49347693), (19, 33764211), (39, 16449231), (57, 11254737), (117, 5483077), (171, 3751579), (247, 2597247), (741, 865749), (2223, 288583)]