20791316

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57119}}^1$

素因数の和:57143

約数の個数: 24

約数和(自身を含む): 44782080

約数和(自身を除く): 23990764

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57119, 114238, 228476, 399833, 742547, 799666, 1485094, 1599332, 2970188, 5197829, 10395658, 20791316]

約数ペア:

[(1, 20791316), (2, 10395658), (4, 5197829), (7, 2970188), (13, 1599332), (14, 1485094), (26, 799666), (28, 742547), (52, 399833), (91, 228476), (182, 114238), (364, 57119)]