81326609

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 104595456

約数和(自身を除く): 23268847

約数列:

[1, 7, 13, 31, 91, 127, 217, 227, 403, 889, 1589, 1651, 2821, 2951, 3937, 7037, 11557, 20657, 27559, 28829, 49259, 51181, 91481, 201803, 358267, 374777, 640367, 893699, 2623439, 6255893, 11618087, 81326609]

約数ペア:

[(1, 81326609), (7, 11618087), (13, 6255893), (31, 2623439), (91, 893699), (127, 640367), (217, 374777), (227, 358267), (403, 201803), (889, 91481), (1589, 51181), (1651, 49259), (2821, 28829), (2951, 27559), (3937, 20657), (7037, 11557)]