21422653

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 25966008

約数和(自身を除く): 4543355

約数列:

[1, 7, 49, 53, 73, 113, 371, 511, 791, 2597, 3577, 3869, 5537, 5989, 8249, 27083, 41923, 57743, 189581, 293461, 404201, 437197, 3060379, 21422653]

約数ペア:

[(1, 21422653), (7, 3060379), (49, 437197), (53, 404201), (73, 293461), (113, 189581), (371, 57743), (511, 41923), (791, 27083), (2597, 8249), (3577, 5989), (3869, 5537)]