20161887165

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9143713}}^1$

素因数の和:9143738

約数の個数: 36

約数和(自身を含む): 40652952444

約数和(自身を除く): 20491065279

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9143713, 27431139, 45718565, 64005991, 82293417, 137155695, 192017973, 320029955, 411467085, 448041937, 576053919, 960089865, 1344125811, 2240209685, 2880269595, 4032377433, 6720629055, 20161887165]

約数ペア:

[(1, 20161887165), (3, 6720629055), (5, 4032377433), (7, 2880269595), (9, 2240209685), (15, 1344125811), (21, 960089865), (35, 576053919), (45, 448041937), (49, 411467085), (63, 320029955), (105, 192017973), (147, 137155695), (245, 82293417), (315, 64005991), (441, 45718565), (735, 27431139), (2205, 9143713)]