20379772

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 22585220

約数列:

[1, 2, 4, 7, 14, 28, 31, 53, 62, 106, 124, 212, 217, 371, 434, 443, 742, 868, 886, 1484, 1643, 1772, 3101, 3286, 6202, 6572, 11501, 12404, 13733, 23002, 23479, 27466, 46004, 46958, 54932, 93916, 96131, 164353, 192262, 328706, 384524, 657412, 727849, 1455698, 2911396, 5094943, 10189886, 20379772]

約数ペア:

[(1, 20379772), (2, 10189886), (4, 5094943), (7, 2911396), (14, 1455698), (28, 727849), (31, 657412), (53, 384524), (62, 328706), (106, 192262), (124, 164353), (212, 96131), (217, 93916), (371, 54932), (434, 46958), (443, 46004), (742, 27466), (868, 23479), (886, 23002), (1484, 13733), (1643, 12404), (1772, 11501), (3101, 6572), (3286, 6202)]