31995999

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 57671680

約数和(自身を除く): 25675681

約数列:

[1, 3, 7, 9, 21, 27, 31, 43, 63, 93, 127, 129, 189, 217, 279, 301, 381, 387, 651, 837, 889, 903, 1143, 1161, 1333, 1953, 2667, 2709, 3429, 3937, 3999, 5461, 5859, 8001, 8127, 9331, 11811, 11997, 16383, 24003, 27559, 27993, 35433, 35991, 38227, 49149, 82677, 83979, 106299, 114681, 147447, 169291, 248031, 251937, 344043, 507873, 744093, 1032129, 1185037, 1523619, 3555111, 4570857, 10665333, 31995999]

約数ペア:

[(1, 31995999), (3, 10665333), (7, 4570857), (9, 3555111), (21, 1523619), (27, 1185037), (31, 1032129), (43, 744093), (63, 507873), (93, 344043), (127, 251937), (129, 248031), (189, 169291), (217, 147447), (279, 114681), (301, 106299), (381, 83979), (387, 82677), (651, 49149), (837, 38227), (889, 35991), (903, 35433), (1143, 27993), (1161, 27559), (1333, 24003), (1953, 16383), (2667, 11997), (2709, 11811), (3429, 9331), (3937, 8127), (3999, 8001), (5461, 5859)]