21429197391

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1051}}^1$

素因数の和:1325

約数の個数: 96

約数和(自身を含む): 36266227200

約数和(自身を除く): 14837029809

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 199, 287, 357, 597, 697, 833, 861, 1051, 1393, 2009, 2091, 2499, 3153, 3383, 4179, 4879, 6027, 7357, 8159, 9751, 10149, 14637, 17867, 22071, 23681, 24477, 29253, 34153, 43091, 51499, 53601, 57113, 71043, 102459, 125069, 129273, 138703, 154497, 165767, 171339, 209149, 301637, 375207, 399791, 416109, 497301, 627447, 732547, 875483, 904911, 970921, 1199373, 1464043, 2111459, 2197641, 2626449, 2912763, 3555533, 4392129, 5127829, 6334377, 6796447, 8575109, 10248301, 10666599, 15383487, 20389341, 24888731, 25725327, 30744903, 35894803, 60025763, 74666193, 107684409, 145776853, 174221117, 180077289, 420180341, 437330559, 522663351, 1020437971, 1260541023, 3061313913, 7143065797, 21429197391]

約数ペア:

[(1, 21429197391), (3, 7143065797), (7, 3061313913), (17, 1260541023), (21, 1020437971), (41, 522663351), (49, 437330559), (51, 420180341), (119, 180077289), (123, 174221117), (147, 145776853), (199, 107684409), (287, 74666193), (357, 60025763), (597, 35894803), (697, 30744903), (833, 25725327), (861, 24888731), (1051, 20389341), (1393, 15383487), (2009, 10666599), (2091, 10248301), (2499, 8575109), (3153, 6796447), (3383, 6334377), (4179, 5127829), (4879, 4392129), (6027, 3555533), (7357, 2912763), (8159, 2626449), (9751, 2197641), (10149, 2111459), (14637, 1464043), (17867, 1199373), (22071, 970921), (23681, 904911), (24477, 875483), (29253, 732547), (34153, 627447), (43091, 497301), (51499, 416109), (53601, 399791), (57113, 375207), (71043, 301637), (102459, 209149), (125069, 171339), (129273, 165767), (138703, 154497)]