51318729

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 96033600

約数和(自身を除く): 44714871

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 71, 77, 99, 147, 149, 213, 231, 441, 447, 497, 539, 639, 693, 781, 1043, 1341, 1491, 1617, 1639, 2343, 3129, 3479, 4473, 4851, 4917, 5467, 7029, 7301, 9387, 10437, 10579, 11473, 14751, 16401, 21903, 31311, 31737, 34419, 38269, 49203, 65709, 74053, 80311, 95211, 103257, 114807, 116369, 222159, 240933, 344421, 349107, 518371, 666477, 722799, 814583, 1047321, 1555113, 2443749, 4665339, 5702081, 7331247, 17106243, 51318729]

約数ペア:

[(1, 51318729), (3, 17106243), (7, 7331247), (9, 5702081), (11, 4665339), (21, 2443749), (33, 1555113), (49, 1047321), (63, 814583), (71, 722799), (77, 666477), (99, 518371), (147, 349107), (149, 344421), (213, 240933), (231, 222159), (441, 116369), (447, 114807), (497, 103257), (539, 95211), (639, 80311), (693, 74053), (781, 65709), (1043, 49203), (1341, 38269), (1491, 34419), (1617, 31737), (1639, 31311), (2343, 21903), (3129, 16401), (3479, 14751), (4473, 11473), (4851, 10579), (4917, 10437), (5467, 9387), (7029, 7301)]