19937156967

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{443}}^1\times {\mathrm{1409}}^1$

素因数の和:1894

約数の個数: 96

約数和(自身を含む): 36660902400

約数和(自身を除く): 16723745433

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 443, 507, 819, 1183, 1329, 1409, 1521, 2457, 3101, 3549, 3987, 4227, 4563, 5759, 9303, 9863, 10647, 11961, 12681, 17277, 18317, 27909, 29589, 31941, 38043, 40313, 51831, 54951, 74867, 83727, 88767, 120939, 128219, 155493, 164853, 224601, 238121, 266301, 362817, 384657, 494559, 524069, 624187, 673803, 714363, 1088451, 1153971, 1572207, 1666847, 1872561, 2021409, 2143089, 3461913, 4369309, 4716621, 5000541, 5617683, 6429267, 8114431, 13107927, 14149863, 15001623, 16853049, 24343293, 39323781, 45004869, 56801017, 73029879, 105487603, 117971343, 170403051, 219089637, 316462809, 511209153, 738413221, 949388427, 1533627459, 2215239663, 2848165281, 6645718989, 19937156967]

約数ペア:

[(1, 19937156967), (3, 6645718989), (7, 2848165281), (9, 2215239663), (13, 1533627459), (21, 949388427), (27, 738413221), (39, 511209153), (63, 316462809), (91, 219089637), (117, 170403051), (169, 117971343), (189, 105487603), (273, 73029879), (351, 56801017), (443, 45004869), (507, 39323781), (819, 24343293), (1183, 16853049), (1329, 15001623), (1409, 14149863), (1521, 13107927), (2457, 8114431), (3101, 6429267), (3549, 5617683), (3987, 5000541), (4227, 4716621), (4563, 4369309), (5759, 3461913), (9303, 2143089), (9863, 2021409), (10647, 1872561), (11961, 1666847), (12681, 1572207), (17277, 1153971), (18317, 1088451), (27909, 714363), (29589, 673803), (31941, 624187), (38043, 524069), (40313, 494559), (51831, 384657), (54951, 362817), (74867, 266301), (83727, 238121), (88767, 224601), (120939, 164853), (128219, 155493)]