20651148

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:556

約数の個数: 108

約数和(自身を含む): 63488880

約数和(自身を除く): 42837732

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, 509, 588, 644, 828, 882, 966, 1018, 1127, 1449, 1527, 1764, 1932, 2036, 2254, 2898, 3054, 3381, 3563, 4508, 4581, 5796, 6108, 6762, 7126, 9162, 10143, 10689, 11707, 13524, 14252, 18324, 20286, 21378, 23414, 24941, 32067, 35121, 40572, 42756, 46828, 49882, 64134, 70242, 74823, 81949, 99764, 105363, 128268, 140484, 149646, 163898, 210726, 224469, 245847, 299292, 327796, 421452, 448938, 491694, 573643, 737541, 897876, 983388, 1147286, 1475082, 1720929, 2294572, 2950164, 3441858, 5162787, 6883716, 10325574, 20651148]

約数ペア:

[(1, 20651148), (2, 10325574), (3, 6883716), (4, 5162787), (6, 3441858), (7, 2950164), (9, 2294572), (12, 1720929), (14, 1475082), (18, 1147286), (21, 983388), (23, 897876), (28, 737541), (36, 573643), (42, 491694), (46, 448938), (49, 421452), (63, 327796), (69, 299292), (84, 245847), (92, 224469), (98, 210726), (126, 163898), (138, 149646), (147, 140484), (161, 128268), (196, 105363), (207, 99764), (252, 81949), (276, 74823), (294, 70242), (322, 64134), (414, 49882), (441, 46828), (483, 42756), (509, 40572), (588, 35121), (644, 32067), (828, 24941), (882, 23414), (966, 21378), (1018, 20286), (1127, 18324), (1449, 14252), (1527, 13524), (1764, 11707), (1932, 10689), (2036, 10143), (2254, 9162), (2898, 7126), (3054, 6762), (3381, 6108), (3563, 5796), (4508, 4581)]