20407716

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:550

約数の個数: 108

約数和(自身を含む): 62741952

約数和(自身を除く): 42334236

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 49, 63, 69, 84, 92, 98, 126, 138, 147, 161, 196, 207, 252, 276, 294, 322, 414, 441, 483, 503, 588, 644, 828, 882, 966, 1006, 1127, 1449, 1509, 1764, 1932, 2012, 2254, 2898, 3018, 3381, 3521, 4508, 4527, 5796, 6036, 6762, 7042, 9054, 10143, 10563, 11569, 13524, 14084, 18108, 20286, 21126, 23138, 24647, 31689, 34707, 40572, 42252, 46276, 49294, 63378, 69414, 73941, 80983, 98588, 104121, 126756, 138828, 147882, 161966, 208242, 221823, 242949, 295764, 323932, 416484, 443646, 485898, 566881, 728847, 887292, 971796, 1133762, 1457694, 1700643, 2267524, 2915388, 3401286, 5101929, 6802572, 10203858, 20407716]

約数ペア:

[(1, 20407716), (2, 10203858), (3, 6802572), (4, 5101929), (6, 3401286), (7, 2915388), (9, 2267524), (12, 1700643), (14, 1457694), (18, 1133762), (21, 971796), (23, 887292), (28, 728847), (36, 566881), (42, 485898), (46, 443646), (49, 416484), (63, 323932), (69, 295764), (84, 242949), (92, 221823), (98, 208242), (126, 161966), (138, 147882), (147, 138828), (161, 126756), (196, 104121), (207, 98588), (252, 80983), (276, 73941), (294, 69414), (322, 63378), (414, 49294), (441, 46276), (483, 42252), (503, 40572), (588, 34707), (644, 31689), (828, 24647), (882, 23138), (966, 21126), (1006, 20286), (1127, 18108), (1449, 14084), (1509, 13524), (1764, 11569), (1932, 10563), (2012, 10143), (2254, 9054), (2898, 7042), (3018, 6762), (3381, 6036), (3521, 5796), (4508, 4527)]