18290691

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 29795040

約数和(自身を除く): 11504349

約数列:

[1, 3, 9, 17, 27, 37, 51, 81, 111, 153, 333, 359, 459, 629, 999, 1077, 1377, 1887, 2997, 3231, 5661, 6103, 9693, 13283, 16983, 18309, 29079, 39849, 50949, 54927, 119547, 164781, 225811, 358641, 494343, 677433, 1075923, 2032299, 6096897, 18290691]

約数ペア:

[(1, 18290691), (3, 6096897), (9, 2032299), (17, 1075923), (27, 677433), (37, 494343), (51, 358641), (81, 225811), (111, 164781), (153, 119547), (333, 54927), (359, 50949), (459, 39849), (629, 29079), (999, 18309), (1077, 16983), (1377, 13283), (1887, 9693), (2997, 6103), (3231, 5661)]