20712604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 41884416

約数和(自身を除く): 21171812

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 97, 194, 211, 253, 388, 422, 506, 844, 1012, 1067, 2134, 2231, 2321, 4268, 4462, 4642, 4853, 8924, 9284, 9706, 19412, 20467, 24541, 40934, 49082, 53383, 81868, 98164, 106766, 213532, 225137, 450274, 470741, 900548, 941482, 1882964, 5178151, 10356302, 20712604]

約数ペア:

[(1, 20712604), (2, 10356302), (4, 5178151), (11, 1882964), (22, 941482), (23, 900548), (44, 470741), (46, 450274), (92, 225137), (97, 213532), (194, 106766), (211, 98164), (253, 81868), (388, 53383), (422, 49082), (506, 40934), (844, 24541), (1012, 20467), (1067, 19412), (2134, 9706), (2231, 9284), (2321, 8924), (4268, 4853), (4462, 4642)]