217265412

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:738

約数の個数: 144

約数和(自身を含む): 650836032

約数和(自身を除く): 433570620

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 43, 49, 52, 78, 84, 86, 91, 98, 129, 147, 156, 172, 182, 196, 258, 273, 294, 301, 364, 516, 546, 559, 588, 602, 637, 661, 903, 1092, 1118, 1204, 1274, 1322, 1677, 1806, 1911, 1983, 2107, 2236, 2548, 2644, 3354, 3612, 3822, 3913, 3966, 4214, 4627, 6321, 6708, 7644, 7826, 7932, 8428, 8593, 9254, 11739, 12642, 13881, 15652, 17186, 18508, 23478, 25284, 25779, 27391, 27762, 28423, 32389, 34372, 46956, 51558, 54782, 55524, 56846, 60151, 64778, 82173, 85269, 97167, 103116, 109564, 113692, 120302, 129556, 164346, 170538, 180453, 194334, 198961, 240604, 328692, 341076, 360906, 369499, 388668, 397922, 421057, 596883, 721812, 738998, 795844, 842114, 1108497, 1193766, 1263171, 1392727, 1477996, 1684228, 2216994, 2387532, 2526342, 2586493, 2785454, 4178181, 4433988, 5052684, 5172986, 5570908, 7759479, 8356362, 10345972, 15518958, 16712724, 18105451, 31037916, 36210902, 54316353, 72421804, 108632706, 217265412]

約数ペア:

[(1, 217265412), (2, 108632706), (3, 72421804), (4, 54316353), (6, 36210902), (7, 31037916), (12, 18105451), (13, 16712724), (14, 15518958), (21, 10345972), (26, 8356362), (28, 7759479), (39, 5570908), (42, 5172986), (43, 5052684), (49, 4433988), (52, 4178181), (78, 2785454), (84, 2586493), (86, 2526342), (91, 2387532), (98, 2216994), (129, 1684228), (147, 1477996), (156, 1392727), (172, 1263171), (182, 1193766), (196, 1108497), (258, 842114), (273, 795844), (294, 738998), (301, 721812), (364, 596883), (516, 421057), (546, 397922), (559, 388668), (588, 369499), (602, 360906), (637, 341076), (661, 328692), (903, 240604), (1092, 198961), (1118, 194334), (1204, 180453), (1274, 170538), (1322, 164346), (1677, 129556), (1806, 120302), (1911, 113692), (1983, 109564), (2107, 103116), (2236, 97167), (2548, 85269), (2644, 82173), (3354, 64778), (3612, 60151), (3822, 56846), (3913, 55524), (3966, 54782), (4214, 51558), (4627, 46956), (6321, 34372), (6708, 32389), (7644, 28423), (7826, 27762), (7932, 27391), (8428, 25779), (8593, 25284), (9254, 23478), (11739, 18508), (12642, 17186), (13881, 15652)]