19421805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{727}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 33755904

約数和(自身を除く): 14334099

約数列:

[1, 3, 5, 13, 15, 39, 65, 137, 195, 411, 685, 727, 1781, 2055, 2181, 3635, 5343, 8905, 9451, 10905, 26715, 28353, 47255, 99599, 141765, 298797, 497995, 1294787, 1493985, 3884361, 6473935, 19421805]

約数ペア:

[(1, 19421805), (3, 6473935), (5, 3884361), (13, 1493985), (15, 1294787), (39, 497995), (65, 298797), (137, 141765), (195, 99599), (411, 47255), (685, 28353), (727, 26715), (1781, 10905), (2055, 9451), (2181, 8905), (3635, 5343)]