21225918

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 53450496

約数和(自身を除く): 32224578

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 43, 46, 49, 69, 73, 86, 98, 129, 138, 146, 147, 161, 219, 258, 294, 301, 322, 438, 483, 511, 602, 903, 966, 989, 1022, 1127, 1533, 1679, 1806, 1978, 2107, 2254, 2967, 3066, 3139, 3358, 3381, 3577, 4214, 5037, 5934, 6278, 6321, 6762, 6923, 7154, 9417, 10074, 10731, 11753, 12642, 13846, 18834, 20769, 21462, 21973, 23506, 35259, 41538, 43946, 48461, 65919, 70518, 72197, 82271, 96922, 131838, 144394, 145383, 153811, 164542, 216591, 246813, 290766, 307622, 433182, 461433, 493626, 505379, 922866, 1010758, 1516137, 3032274, 3537653, 7075306, 10612959, 21225918]

約数ペア:

[(1, 21225918), (2, 10612959), (3, 7075306), (6, 3537653), (7, 3032274), (14, 1516137), (21, 1010758), (23, 922866), (42, 505379), (43, 493626), (46, 461433), (49, 433182), (69, 307622), (73, 290766), (86, 246813), (98, 216591), (129, 164542), (138, 153811), (146, 145383), (147, 144394), (161, 131838), (219, 96922), (258, 82271), (294, 72197), (301, 70518), (322, 65919), (438, 48461), (483, 43946), (511, 41538), (602, 35259), (903, 23506), (966, 21973), (989, 21462), (1022, 20769), (1127, 18834), (1533, 13846), (1679, 12642), (1806, 11753), (1978, 10731), (2107, 10074), (2254, 9417), (2967, 7154), (3066, 6923), (3139, 6762), (3358, 6321), (3381, 6278), (3577, 5934), (4214, 5037)]