42553107

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{7841}}^1$

素因数の和:7920

約数の個数: 20

約数和(自身を含む): 64523976

約数和(自身を除く): 21970869

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 7841, 23523, 70569, 211707, 525347, 635121, 1576041, 4728123, 14184369, 42553107]

約数ペア:

[(1, 42553107), (3, 14184369), (9, 4728123), (27, 1576041), (67, 635121), (81, 525347), (201, 211707), (603, 70569), (1809, 23523), (5427, 7841)]