18172385

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{613}}^1$

素因数の和:654

約数の個数: 36

約数和(自身を含む): 27928404

約数和(自身を除く): 9756019

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 121, 245, 385, 539, 605, 613, 847, 2695, 3065, 4235, 4291, 5929, 6743, 21455, 29645, 30037, 33715, 47201, 74173, 150185, 236005, 330407, 370865, 519211, 1652035, 2596055, 3634477, 18172385]

約数ペア:

[(1, 18172385), (5, 3634477), (7, 2596055), (11, 1652035), (35, 519211), (49, 370865), (55, 330407), (77, 236005), (121, 150185), (245, 74173), (385, 47201), (539, 33715), (605, 30037), (613, 29645), (847, 21455), (2695, 6743), (3065, 5929), (4235, 4291)]