18802017

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 33384960

約数和(自身を除く): 14582943

約数列:

[1, 3, 9, 13, 17, 23, 27, 39, 51, 69, 117, 137, 153, 207, 221, 299, 351, 391, 411, 459, 621, 663, 897, 1173, 1233, 1781, 1989, 2329, 2691, 3151, 3519, 3699, 5083, 5343, 5967, 6987, 8073, 9453, 10557, 15249, 16029, 20961, 28359, 30277, 40963, 45747, 48087, 53567, 62883, 85077, 90831, 122889, 137241, 160701, 272493, 368667, 482103, 696371, 817479, 1106001, 1446309, 2089113, 6267339, 18802017]

約数ペア:

[(1, 18802017), (3, 6267339), (9, 2089113), (13, 1446309), (17, 1106001), (23, 817479), (27, 696371), (39, 482103), (51, 368667), (69, 272493), (117, 160701), (137, 137241), (153, 122889), (207, 90831), (221, 85077), (299, 62883), (351, 53567), (391, 48087), (411, 45747), (459, 40963), (621, 30277), (663, 28359), (897, 20961), (1173, 16029), (1233, 15249), (1781, 10557), (1989, 9453), (2329, 8073), (2691, 6987), (3151, 5967), (3519, 5343), (3699, 5083)]