20644386

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 52005888

約数和(自身を除く): 31361502

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 43, 46, 49, 69, 71, 86, 98, 129, 138, 142, 147, 161, 213, 258, 294, 301, 322, 426, 483, 497, 602, 903, 966, 989, 994, 1127, 1491, 1633, 1806, 1978, 2107, 2254, 2967, 2982, 3053, 3266, 3381, 3479, 4214, 4899, 5934, 6106, 6321, 6762, 6923, 6958, 9159, 9798, 10437, 11431, 12642, 13846, 18318, 20769, 20874, 21371, 22862, 34293, 41538, 42742, 48461, 64113, 68586, 70219, 80017, 96922, 128226, 140438, 145383, 149597, 160034, 210657, 240051, 290766, 299194, 421314, 448791, 480102, 491533, 897582, 983066, 1474599, 2949198, 3440731, 6881462, 10322193, 20644386]

約数ペア:

[(1, 20644386), (2, 10322193), (3, 6881462), (6, 3440731), (7, 2949198), (14, 1474599), (21, 983066), (23, 897582), (42, 491533), (43, 480102), (46, 448791), (49, 421314), (69, 299194), (71, 290766), (86, 240051), (98, 210657), (129, 160034), (138, 149597), (142, 145383), (147, 140438), (161, 128226), (213, 96922), (258, 80017), (294, 70219), (301, 68586), (322, 64113), (426, 48461), (483, 42742), (497, 41538), (602, 34293), (903, 22862), (966, 21371), (989, 20874), (994, 20769), (1127, 18318), (1491, 13846), (1633, 12642), (1806, 11431), (1978, 10437), (2107, 9798), (2254, 9159), (2967, 6958), (2982, 6923), (3053, 6762), (3266, 6321), (3381, 6106), (3479, 5934), (4214, 4899)]