21937132

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 45638208

約数和(自身を除く): 23701076

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 97, 164, 194, 197, 287, 388, 394, 574, 679, 788, 1148, 1358, 1379, 2716, 2758, 3977, 5516, 7954, 8077, 15908, 16154, 19109, 27839, 32308, 38218, 55678, 56539, 76436, 111356, 113078, 133763, 226156, 267526, 535052, 783469, 1566938, 3133876, 5484283, 10968566, 21937132]

約数ペア:

[(1, 21937132), (2, 10968566), (4, 5484283), (7, 3133876), (14, 1566938), (28, 783469), (41, 535052), (82, 267526), (97, 226156), (164, 133763), (194, 113078), (197, 111356), (287, 76436), (388, 56539), (394, 55678), (574, 38218), (679, 32308), (788, 27839), (1148, 19109), (1358, 16154), (1379, 15908), (2716, 8077), (2758, 7954), (3977, 5516)]