21249424

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 50211072

約数和(自身を除く): 28961648

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 73, 92, 112, 113, 146, 161, 184, 226, 292, 322, 368, 452, 511, 584, 644, 791, 904, 1022, 1168, 1288, 1582, 1679, 1808, 2044, 2576, 2599, 3164, 3358, 4088, 5198, 6328, 6716, 8176, 8249, 10396, 11753, 12656, 13432, 16498, 18193, 20792, 23506, 26864, 32996, 36386, 41584, 47012, 57743, 65992, 72772, 94024, 115486, 131984, 145544, 188048, 189727, 230972, 291088, 379454, 461944, 758908, 923888, 1328089, 1517816, 2656178, 3035632, 5312356, 10624712, 21249424]

約数ペア:

[(1, 21249424), (2, 10624712), (4, 5312356), (7, 3035632), (8, 2656178), (14, 1517816), (16, 1328089), (23, 923888), (28, 758908), (46, 461944), (56, 379454), (73, 291088), (92, 230972), (112, 189727), (113, 188048), (146, 145544), (161, 131984), (184, 115486), (226, 94024), (292, 72772), (322, 65992), (368, 57743), (452, 47012), (511, 41584), (584, 36386), (644, 32996), (791, 26864), (904, 23506), (1022, 20792), (1168, 18193), (1288, 16498), (1582, 13432), (1679, 12656), (1808, 11753), (2044, 10396), (2576, 8249), (2599, 8176), (3164, 6716), (3358, 6328), (4088, 5198)]