20867252

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5689}}^1$

素因数の和:5831

約数の個数: 24

約数和(自身を含む): 42060480

約数和(自身を除く): 21193228

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 5689, 11378, 22756, 39823, 79646, 159292, 745259, 1490518, 2981036, 5216813, 10433626, 20867252]

約数ペア:

[(1, 20867252), (2, 10433626), (4, 5216813), (7, 2981036), (14, 1490518), (28, 745259), (131, 159292), (262, 79646), (524, 39823), (917, 22756), (1834, 11378), (3668, 5689)]