21663852

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{257903}}^1$

素因数の和:257917

約数の個数: 24

約数和(自身を含む): 57770496

約数和(自身を除く): 36106644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 257903, 515806, 773709, 1031612, 1547418, 1805321, 3094836, 3610642, 5415963, 7221284, 10831926, 21663852]

約数ペア:

[(1, 21663852), (2, 10831926), (3, 7221284), (4, 5415963), (6, 3610642), (7, 3094836), (12, 1805321), (14, 1547418), (21, 1031612), (28, 773709), (42, 515806), (84, 257903)]