51443973

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 92192256

約数和(自身を除く): 40748283

約数列:

[1, 3, 7, 9, 21, 31, 49, 53, 63, 71, 93, 147, 159, 213, 217, 279, 371, 441, 477, 497, 639, 651, 1113, 1491, 1519, 1643, 1953, 2201, 2597, 3339, 3479, 3763, 4473, 4557, 4929, 6603, 7791, 10437, 11289, 11501, 13671, 14787, 15407, 19809, 23373, 26341, 31311, 33867, 34503, 46221, 79023, 80507, 103509, 107849, 116653, 138663, 184387, 237069, 241521, 323547, 349959, 553161, 724563, 816571, 970641, 1049877, 1659483, 2449713, 5715997, 7349139, 17147991, 51443973]

約数ペア:

[(1, 51443973), (3, 17147991), (7, 7349139), (9, 5715997), (21, 2449713), (31, 1659483), (49, 1049877), (53, 970641), (63, 816571), (71, 724563), (93, 553161), (147, 349959), (159, 323547), (213, 241521), (217, 237069), (279, 184387), (371, 138663), (441, 116653), (477, 107849), (497, 103509), (639, 80507), (651, 79023), (1113, 46221), (1491, 34503), (1519, 33867), (1643, 31311), (1953, 26341), (2201, 23373), (2597, 19809), (3339, 15407), (3479, 14787), (3763, 13671), (4473, 11501), (4557, 11289), (4929, 10437), (6603, 7791)]