21038043

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 10572837

約数列:

[1, 3, 13, 39, 41, 59, 123, 177, 223, 533, 669, 767, 1599, 2301, 2419, 2899, 7257, 8697, 9143, 13157, 27429, 31447, 39471, 94341, 118859, 171041, 356577, 513123, 539437, 1618311, 7012681, 21038043]

約数ペア:

[(1, 21038043), (3, 7012681), (13, 1618311), (39, 539437), (41, 513123), (59, 356577), (123, 171041), (177, 118859), (223, 94341), (533, 39471), (669, 31447), (767, 27429), (1599, 13157), (2301, 9143), (2419, 8697), (2899, 7257)]