21245056

素因数分解:

$2^7\times 7^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 49008960

約数和(自身を除く): 27763904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 131, 181, 224, 262, 362, 448, 524, 724, 896, 917, 1048, 1267, 1448, 1834, 2096, 2534, 2896, 3668, 4192, 5068, 5792, 7336, 8384, 10136, 11584, 14672, 16768, 20272, 23168, 23711, 29344, 40544, 47422, 58688, 81088, 94844, 117376, 162176, 165977, 189688, 331954, 379376, 663908, 758752, 1327816, 1517504, 2655632, 3035008, 5311264, 10622528, 21245056]

約数ペア:

[(1, 21245056), (2, 10622528), (4, 5311264), (7, 3035008), (8, 2655632), (14, 1517504), (16, 1327816), (28, 758752), (32, 663908), (56, 379376), (64, 331954), (112, 189688), (128, 165977), (131, 162176), (181, 117376), (224, 94844), (262, 81088), (362, 58688), (448, 47422), (524, 40544), (724, 29344), (896, 23711), (917, 23168), (1048, 20272), (1267, 16768), (1448, 14672), (1834, 11584), (2096, 10136), (2534, 8384), (2896, 7336), (3668, 5792), (4192, 5068)]