71380881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1499}}^1$

素因数の和:1566

約数の個数: 48

約数和(自身を含む): 124488000

約数和(自身を除く): 53107119

約数列:

[1, 3, 9, 11, 13, 33, 37, 39, 99, 111, 117, 143, 333, 407, 429, 481, 1221, 1287, 1443, 1499, 3663, 4329, 4497, 5291, 13491, 15873, 16489, 19487, 47619, 49467, 55463, 58461, 148401, 166389, 175383, 214357, 499167, 610093, 643071, 721019, 1830279, 1929213, 2163057, 5490837, 6489171, 7931209, 23793627, 71380881]

約数ペア:

[(1, 71380881), (3, 23793627), (9, 7931209), (11, 6489171), (13, 5490837), (33, 2163057), (37, 1929213), (39, 1830279), (99, 721019), (111, 643071), (117, 610093), (143, 499167), (333, 214357), (407, 175383), (429, 166389), (481, 148401), (1221, 58461), (1287, 55463), (1443, 49467), (1499, 47619), (3663, 19487), (4329, 16489), (4497, 15873), (5291, 13491)]