20987541882

素因数分解:

$2^1\times 3^3\times {\mathrm{757}}^1\times {\mathrm{513419}}^1$

素因数の和:514187

約数の個数: 32

約数和(自身を含む): 46700683200

約数和(自身を除く): 25713141318

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 757, 1514, 2271, 4542, 6813, 13626, 20439, 40878, 513419, 1026838, 1540257, 3080514, 4620771, 9241542, 13862313, 27724626, 388658183, 777316366, 1165974549, 2331949098, 3497923647, 6995847294, 10493770941, 20987541882]

約数ペア:

[(1, 20987541882), (2, 10493770941), (3, 6995847294), (6, 3497923647), (9, 2331949098), (18, 1165974549), (27, 777316366), (54, 388658183), (757, 27724626), (1514, 13862313), (2271, 9241542), (4542, 4620771), (6813, 3080514), (13626, 1540257), (20439, 1026838), (40878, 513419)]