20172196863

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{8863}}^1$

素因数の和:9293

約数の個数: 72

約数和(自身を含む): 36598144128

約数和(自身を除く): 16425947265

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 397, 441, 637, 819, 1191, 1911, 2779, 3573, 5161, 5733, 8337, 8863, 15483, 19453, 25011, 26589, 36127, 46449, 58359, 62041, 79767, 108381, 115219, 175077, 186123, 252889, 325143, 345657, 434287, 558369, 758667, 806533, 1036971, 1302861, 2276001, 2419599, 3518611, 3908583, 5645731, 7258797, 10555833, 16937193, 24630277, 31667499, 45741943, 50811579, 73890831, 137225829, 172411939, 221672493, 320193601, 411677487, 517235817, 960580803, 1551707451, 2241355207, 2881742409, 6724065621, 20172196863]

約数ペア:

[(1, 20172196863), (3, 6724065621), (7, 2881742409), (9, 2241355207), (13, 1551707451), (21, 960580803), (39, 517235817), (49, 411677487), (63, 320193601), (91, 221672493), (117, 172411939), (147, 137225829), (273, 73890831), (397, 50811579), (441, 45741943), (637, 31667499), (819, 24630277), (1191, 16937193), (1911, 10555833), (2779, 7258797), (3573, 5645731), (5161, 3908583), (5733, 3518611), (8337, 2419599), (8863, 2276001), (15483, 1302861), (19453, 1036971), (25011, 806533), (26589, 758667), (36127, 558369), (46449, 434287), (58359, 345657), (62041, 325143), (79767, 252889), (108381, 186123), (115219, 175077)]