21552454

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19993}}^1$

素因数の和:20020

約数の個数: 24

約数和(自身を含む): 41027688

約数和(自身を除く): 19475234

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19993, 39986, 139951, 219923, 279902, 439846, 979657, 1539461, 1959314, 3078922, 10776227, 21552454]

約数ペア:

[(1, 21552454), (2, 10776227), (7, 3078922), (11, 1959314), (14, 1539461), (22, 979657), (49, 439846), (77, 279902), (98, 219923), (154, 139951), (539, 39986), (1078, 19993)]