51187311

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 93366000

約数和(自身を除く): 42178689

約数列:

[1, 3, 7, 9, 19, 21, 41, 49, 57, 63, 123, 133, 147, 149, 171, 287, 369, 399, 441, 447, 779, 861, 931, 1043, 1197, 1341, 2009, 2337, 2583, 2793, 2831, 3129, 5453, 6027, 6109, 7011, 7301, 8379, 8493, 9387, 16359, 18081, 18327, 19817, 21903, 25479, 38171, 42763, 49077, 54981, 59451, 65709, 114513, 116071, 128289, 138719, 178353, 299341, 343539, 348213, 384867, 416157, 812497, 898023, 1044639, 1248471, 2437491, 2694069, 5687479, 7312473, 17062437, 51187311]

約数ペア:

[(1, 51187311), (3, 17062437), (7, 7312473), (9, 5687479), (19, 2694069), (21, 2437491), (41, 1248471), (49, 1044639), (57, 898023), (63, 812497), (123, 416157), (133, 384867), (147, 348213), (149, 343539), (171, 299341), (287, 178353), (369, 138719), (399, 128289), (441, 116071), (447, 114513), (779, 65709), (861, 59451), (931, 54981), (1043, 49077), (1197, 42763), (1341, 38171), (2009, 25479), (2337, 21903), (2583, 19817), (2793, 18327), (2831, 18081), (3129, 16359), (5453, 9387), (6027, 8493), (6109, 8379), (7011, 7301)]