15991614

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 21264066

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 71, 86, 97, 129, 142, 194, 213, 258, 291, 387, 426, 582, 639, 774, 873, 1161, 1278, 1746, 1917, 2322, 2619, 3053, 3834, 4171, 5238, 6106, 6887, 8342, 9159, 12513, 13774, 18318, 20661, 25026, 27477, 37539, 41322, 54954, 61983, 75078, 82431, 112617, 123966, 164862, 185949, 225234, 296141, 371898, 592282, 888423, 1776846, 2665269, 5330538, 7995807, 15991614]

約数ペア:

[(1, 15991614), (2, 7995807), (3, 5330538), (6, 2665269), (9, 1776846), (18, 888423), (27, 592282), (43, 371898), (54, 296141), (71, 225234), (86, 185949), (97, 164862), (129, 123966), (142, 112617), (194, 82431), (213, 75078), (258, 61983), (291, 54954), (387, 41322), (426, 37539), (582, 27477), (639, 25026), (774, 20661), (873, 18318), (1161, 13774), (1278, 12513), (1746, 9159), (1917, 8342), (2322, 6887), (2619, 6106), (3053, 5238), (3834, 4171)]