21278114

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 38737440

約数和(自身を除く): 17459326

約数列:

[1, 2, 11, 13, 22, 26, 59, 97, 118, 143, 169, 194, 286, 338, 649, 767, 1067, 1261, 1298, 1534, 1859, 2134, 2522, 3718, 5723, 8437, 9971, 11446, 13871, 16393, 16874, 19942, 27742, 32786, 62953, 74399, 109681, 125906, 148798, 180323, 219362, 360646, 818389, 967187, 1636778, 1934374, 10639057, 21278114]

約数ペア:

[(1, 21278114), (2, 10639057), (11, 1934374), (13, 1636778), (22, 967187), (26, 818389), (59, 360646), (97, 219362), (118, 180323), (143, 148798), (169, 125906), (194, 109681), (286, 74399), (338, 62953), (649, 32786), (767, 27742), (1067, 19942), (1261, 16874), (1298, 16393), (1534, 13871), (1859, 11446), (2134, 9971), (2522, 8437), (3718, 5723)]