18545212

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 38655232

約数和(自身を除く): 20110020

約数列:

[1, 2, 4, 7, 14, 28, 43, 73, 86, 146, 172, 211, 292, 301, 422, 511, 602, 844, 1022, 1204, 1477, 2044, 2954, 3139, 5908, 6278, 9073, 12556, 15403, 18146, 21973, 30806, 36292, 43946, 61612, 63511, 87892, 107821, 127022, 215642, 254044, 431284, 662329, 1324658, 2649316, 4636303, 9272606, 18545212]

約数ペア:

[(1, 18545212), (2, 9272606), (4, 4636303), (7, 2649316), (14, 1324658), (28, 662329), (43, 431284), (73, 254044), (86, 215642), (146, 127022), (172, 107821), (211, 87892), (292, 63511), (301, 61612), (422, 43946), (511, 36292), (602, 30806), (844, 21973), (1022, 18146), (1204, 15403), (1477, 12556), (2044, 9073), (2954, 6278), (3139, 5908)]