21511347

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1223}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13034829

約数列:

[1, 3, 11, 13, 33, 39, 41, 123, 143, 429, 451, 533, 1223, 1353, 1599, 3669, 5863, 13453, 15899, 17589, 40359, 47697, 50143, 150429, 174889, 524667, 551573, 651859, 1654719, 1955577, 7170449, 21511347]

約数ペア:

[(1, 21511347), (3, 7170449), (11, 1955577), (13, 1654719), (33, 651859), (39, 551573), (41, 524667), (123, 174889), (143, 150429), (429, 50143), (451, 47697), (533, 40359), (1223, 17589), (1353, 15899), (1599, 13453), (3669, 5863)]