21095284

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2503}}^1$

素因数の和:2564

約数の個数: 36

約数和(自身を含む): 43960224

約数和(自身を除く): 22864940

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2503, 4214, 5006, 8428, 10012, 17521, 35042, 70084, 107629, 122647, 215258, 245294, 430516, 490588, 753403, 1506806, 3013612, 5273821, 10547642, 21095284]

約数ペア:

[(1, 21095284), (2, 10547642), (4, 5273821), (7, 3013612), (14, 1506806), (28, 753403), (43, 490588), (49, 430516), (86, 245294), (98, 215258), (172, 122647), (196, 107629), (301, 70084), (602, 35042), (1204, 17521), (2107, 10012), (2503, 8428), (4214, 5006)]