20487910

素因数分解:

$2^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{1931}}^1$

素因数の和:2999

約数の個数: 16

約数和(自身を含む): 36932112

約数和(自身を除く): 16444202

約数列:

[1, 2, 5, 10, 1061, 1931, 2122, 3862, 5305, 9655, 10610, 19310, 2048791, 4097582, 10243955, 20487910]

約数ペア:

[(1, 20487910), (2, 10243955), (5, 4097582), (10, 2048791), (1061, 19310), (1931, 10610), (2122, 9655), (3862, 5305)]