21589702988

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{245639}}^1$

素因数の和:245766

約数の個数: 48

約数和(自身を含む): 44789015040

約数和(自身を除く): 23199312052

約数列:

[1, 2, 4, 7, 14, 28, 43, 73, 86, 146, 172, 292, 301, 511, 602, 1022, 1204, 2044, 3139, 6278, 12556, 21973, 43946, 87892, 245639, 491278, 982556, 1719473, 3438946, 6877892, 10562477, 17931647, 21124954, 35863294, 42249908, 71726588, 73937339, 125521529, 147874678, 251043058, 295749356, 502086116, 771060821, 1542121642, 3084243284, 5397425747, 10794851494, 21589702988]

約数ペア:

[(1, 21589702988), (2, 10794851494), (4, 5397425747), (7, 3084243284), (14, 1542121642), (28, 771060821), (43, 502086116), (73, 295749356), (86, 251043058), (146, 147874678), (172, 125521529), (292, 73937339), (301, 71726588), (511, 42249908), (602, 35863294), (1022, 21124954), (1204, 17931647), (2044, 10562477), (3139, 6877892), (6278, 3438946), (12556, 1719473), (21973, 982556), (43946, 491278), (87892, 245639)]