20340495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2083}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 41613312

約数和(自身を除く): 21272817

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2083, 3255, 6249, 9765, 10415, 14581, 18747, 31245, 43743, 64573, 72905, 93735, 131229, 193719, 218715, 322865, 452011, 581157, 656145, 968595, 1356033, 2260055, 2905785, 4068099, 6780165, 20340495]

約数ペア:

[(1, 20340495), (3, 6780165), (5, 4068099), (7, 2905785), (9, 2260055), (15, 1356033), (21, 968595), (31, 656145), (35, 581157), (45, 452011), (63, 322865), (93, 218715), (105, 193719), (155, 131229), (217, 93735), (279, 72905), (315, 64573), (465, 43743), (651, 31245), (1085, 18747), (1395, 14581), (1953, 10415), (2083, 9765), (3255, 6249)]