21110964

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 39100236

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 69, 84, 92, 98, 138, 147, 161, 196, 223, 276, 294, 322, 343, 446, 483, 588, 644, 669, 686, 892, 966, 1029, 1127, 1338, 1372, 1561, 1932, 2058, 2254, 2676, 3122, 3381, 4116, 4508, 4683, 5129, 6244, 6762, 7889, 9366, 10258, 10927, 13524, 15387, 15778, 18732, 20516, 21854, 23667, 30774, 31556, 32781, 35903, 43708, 47334, 61548, 65562, 71806, 76489, 94668, 107709, 131124, 143612, 152978, 215418, 229467, 251321, 305956, 430836, 458934, 502642, 753963, 917868, 1005284, 1507926, 1759247, 3015852, 3518494, 5277741, 7036988, 10555482, 21110964]

約数ペア:

[(1, 21110964), (2, 10555482), (3, 7036988), (4, 5277741), (6, 3518494), (7, 3015852), (12, 1759247), (14, 1507926), (21, 1005284), (23, 917868), (28, 753963), (42, 502642), (46, 458934), (49, 430836), (69, 305956), (84, 251321), (92, 229467), (98, 215418), (138, 152978), (147, 143612), (161, 131124), (196, 107709), (223, 94668), (276, 76489), (294, 71806), (322, 65562), (343, 61548), (446, 47334), (483, 43708), (588, 35903), (644, 32781), (669, 31556), (686, 30774), (892, 23667), (966, 21854), (1029, 20516), (1127, 18732), (1338, 15778), (1372, 15387), (1561, 13524), (1932, 10927), (2058, 10258), (2254, 9366), (2676, 7889), (3122, 6762), (3381, 6244), (4116, 5129), (4508, 4683)]