21688004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{733}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 41001240

約数和(自身を除く): 19313236

約数列:

[1, 2, 4, 13, 26, 52, 569, 733, 1138, 1466, 2276, 2932, 7397, 9529, 14794, 19058, 29588, 38116, 417077, 834154, 1668308, 5422001, 10844002, 21688004]

約数ペア:

[(1, 21688004), (2, 10844002), (4, 5422001), (13, 1668308), (26, 834154), (52, 417077), (569, 38116), (733, 29588), (1138, 19058), (1466, 14794), (2276, 9529), (2932, 7397)]