21115864

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30594536

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 59, 77, 83, 88, 98, 118, 154, 166, 196, 236, 308, 332, 392, 413, 472, 539, 581, 616, 649, 664, 826, 913, 1078, 1162, 1298, 1652, 1826, 2156, 2324, 2596, 2891, 3304, 3652, 4067, 4312, 4543, 4648, 4897, 5192, 5782, 6391, 7304, 8134, 9086, 9794, 11564, 12782, 16268, 18172, 19588, 23128, 25564, 31801, 32536, 34279, 36344, 39176, 44737, 51128, 53867, 63602, 68558, 89474, 107734, 127204, 137116, 178948, 215468, 239953, 254408, 274232, 357896, 377069, 430936, 479906, 754138, 959812, 1508276, 1919624, 2639483, 3016552, 5278966, 10557932, 21115864]

約数ペア:

[(1, 21115864), (2, 10557932), (4, 5278966), (7, 3016552), (8, 2639483), (11, 1919624), (14, 1508276), (22, 959812), (28, 754138), (44, 479906), (49, 430936), (56, 377069), (59, 357896), (77, 274232), (83, 254408), (88, 239953), (98, 215468), (118, 178948), (154, 137116), (166, 127204), (196, 107734), (236, 89474), (308, 68558), (332, 63602), (392, 53867), (413, 51128), (472, 44737), (539, 39176), (581, 36344), (616, 34279), (649, 32536), (664, 31801), (826, 25564), (913, 23128), (1078, 19588), (1162, 18172), (1298, 16268), (1652, 12782), (1826, 11564), (2156, 9794), (2324, 9086), (2596, 8134), (2891, 7304), (3304, 6391), (3652, 5782), (4067, 5192), (4312, 4897), (4543, 4648)]