19468755

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:977

約数の個数: 40

約数和(自身を含む): 35597232

約数和(自身を除く): 16128477

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 907, 1431, 2385, 2721, 4293, 4535, 7155, 8163, 13605, 21465, 24489, 40815, 48071, 73467, 122445, 144213, 240355, 367335, 432639, 721065, 1297917, 2163195, 3893751, 6489585, 19468755]

約数ペア:

[(1, 19468755), (3, 6489585), (5, 3893751), (9, 2163195), (15, 1297917), (27, 721065), (45, 432639), (53, 367335), (81, 240355), (135, 144213), (159, 122445), (265, 73467), (405, 48071), (477, 40815), (795, 24489), (907, 21465), (1431, 13605), (2385, 8163), (2721, 7155), (4293, 4535)]