18712395

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1103}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 36167040

約数和(自身を除く): 17454645

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1103, 1131, 1305, 1885, 3309, 3393, 5515, 5655, 9927, 14339, 16545, 16965, 31987, 43017, 49635, 71695, 95961, 129051, 159935, 215085, 287883, 415831, 479805, 645255, 1247493, 1439415, 2079155, 3742479, 6237465, 18712395]

約数ペア:

[(1, 18712395), (3, 6237465), (5, 3742479), (9, 2079155), (13, 1439415), (15, 1247493), (29, 645255), (39, 479805), (45, 415831), (65, 287883), (87, 215085), (117, 159935), (145, 129051), (195, 95961), (261, 71695), (377, 49635), (435, 43017), (585, 31987), (1103, 16965), (1131, 16545), (1305, 14339), (1885, 9927), (3309, 5655), (3393, 5515)]