20749095

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9041}}^1$

素因数の和:9072

約数の個数: 32

約数和(自身を含む): 39061440

約数和(自身を除く): 18312345

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9041, 27123, 45205, 81369, 135615, 153697, 244107, 406845, 461091, 768485, 1220535, 1383273, 2305455, 4149819, 6916365, 20749095]

約数ペア:

[(1, 20749095), (3, 6916365), (5, 4149819), (9, 2305455), (15, 1383273), (17, 1220535), (27, 768485), (45, 461091), (51, 406845), (85, 244107), (135, 153697), (153, 135615), (255, 81369), (459, 45205), (765, 27123), (2295, 9041)]