19661887

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 23860656

約数和(自身を除く): 4198769

約数列:

[1, 7, 49, 53, 67, 113, 371, 469, 791, 2597, 3283, 3551, 5537, 5989, 7571, 24857, 41923, 52997, 173999, 293461, 370979, 401263, 2808841, 19661887]

約数ペア:

[(1, 19661887), (7, 2808841), (49, 401263), (53, 370979), (67, 293461), (113, 173999), (371, 52997), (469, 41923), (791, 24857), (2597, 7571), (3283, 5989), (3551, 5537)]