21907683

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8087}}^1$

素因数の和:8143

約数の個数: 24

約数和(自身を含む): 37010688

約数和(自身を除く): 15103005

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 8087, 24261, 56609, 72783, 169827, 347741, 509481, 1043223, 2434187, 3129669, 7302561, 21907683]

約数ペア:

[(1, 21907683), (3, 7302561), (7, 3129669), (9, 2434187), (21, 1043223), (43, 509481), (63, 347741), (129, 169827), (301, 72783), (387, 56609), (903, 24261), (2709, 8087)]