18711407

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 5238673

約数列:

[1, 11, 13, 17, 43, 143, 179, 187, 221, 473, 559, 731, 1969, 2327, 2431, 3043, 6149, 7697, 8041, 9503, 25597, 33473, 39559, 84667, 100061, 104533, 130849, 435149, 1100671, 1439339, 1701037, 18711407]

約数ペア:

[(1, 18711407), (11, 1701037), (13, 1439339), (17, 1100671), (43, 435149), (143, 130849), (179, 104533), (187, 100061), (221, 84667), (473, 39559), (559, 33473), (731, 25597), (1969, 9503), (2327, 8041), (2431, 7697), (3043, 6149)]