21648984

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:513

約数の個数: 96

約数和(自身を含む): 64638000

約数和(自身を除く): 42989016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 49, 56, 82, 84, 98, 123, 147, 164, 168, 196, 246, 287, 294, 328, 392, 449, 492, 574, 588, 861, 898, 984, 1148, 1176, 1347, 1722, 1796, 2009, 2296, 2694, 3143, 3444, 3592, 4018, 5388, 6027, 6286, 6888, 8036, 9429, 10776, 12054, 12572, 16072, 18409, 18858, 22001, 24108, 25144, 36818, 37716, 44002, 48216, 55227, 66003, 73636, 75432, 88004, 110454, 128863, 132006, 147272, 176008, 220908, 257726, 264012, 386589, 441816, 515452, 528024, 773178, 902041, 1030904, 1546356, 1804082, 2706123, 3092712, 3608164, 5412246, 7216328, 10824492, 21648984]

約数ペア:

[(1, 21648984), (2, 10824492), (3, 7216328), (4, 5412246), (6, 3608164), (7, 3092712), (8, 2706123), (12, 1804082), (14, 1546356), (21, 1030904), (24, 902041), (28, 773178), (41, 528024), (42, 515452), (49, 441816), (56, 386589), (82, 264012), (84, 257726), (98, 220908), (123, 176008), (147, 147272), (164, 132006), (168, 128863), (196, 110454), (246, 88004), (287, 75432), (294, 73636), (328, 66003), (392, 55227), (449, 48216), (492, 44002), (574, 37716), (588, 36818), (861, 25144), (898, 24108), (984, 22001), (1148, 18858), (1176, 18409), (1347, 16072), (1722, 12572), (1796, 12054), (2009, 10776), (2296, 9429), (2694, 8036), (3143, 6888), (3444, 6286), (3592, 6027), (4018, 5388)]