21802264

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 45581760

約数和(自身を除く): 23779496

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 121, 202, 223, 242, 404, 446, 484, 808, 892, 968, 1111, 1784, 2222, 2453, 4444, 4906, 8888, 9812, 12221, 19624, 22523, 24442, 26983, 45046, 48884, 53966, 90092, 97768, 107932, 180184, 215864, 247753, 495506, 991012, 1982024, 2725283, 5450566, 10901132, 21802264]

約数ペア:

[(1, 21802264), (2, 10901132), (4, 5450566), (8, 2725283), (11, 1982024), (22, 991012), (44, 495506), (88, 247753), (101, 215864), (121, 180184), (202, 107932), (223, 97768), (242, 90092), (404, 53966), (446, 48884), (484, 45046), (808, 26983), (892, 24442), (968, 22523), (1111, 19624), (1784, 12221), (2222, 9812), (2453, 8888), (4444, 4906)]