28217826

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 80668224

約数和(自身を除く): 52450398

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 23, 26, 39, 42, 46, 49, 63, 69, 78, 91, 98, 107, 117, 126, 138, 147, 161, 182, 207, 214, 234, 273, 294, 299, 321, 322, 414, 441, 483, 546, 598, 637, 642, 749, 819, 882, 897, 963, 966, 1127, 1274, 1391, 1449, 1498, 1638, 1794, 1911, 1926, 2093, 2247, 2254, 2461, 2691, 2782, 2898, 3381, 3822, 4173, 4186, 4494, 4922, 5243, 5382, 5733, 6279, 6741, 6762, 7383, 8346, 9737, 10143, 10486, 11466, 12519, 12558, 13482, 14651, 14766, 15729, 17227, 18837, 19474, 20286, 22149, 25038, 29211, 29302, 31458, 31993, 34454, 37674, 43953, 44298, 47187, 51681, 58422, 63986, 68159, 87633, 87906, 94374, 95979, 103362, 120589, 131859, 136318, 155043, 175266, 191958, 204477, 223951, 241178, 263718, 287937, 310086, 361767, 408954, 447902, 575874, 613431, 671853, 723534, 1085301, 1226862, 1343706, 1567657, 2015559, 2170602, 3135314, 4031118, 4702971, 9405942, 14108913, 28217826]

約数ペア:

[(1, 28217826), (2, 14108913), (3, 9405942), (6, 4702971), (7, 4031118), (9, 3135314), (13, 2170602), (14, 2015559), (18, 1567657), (21, 1343706), (23, 1226862), (26, 1085301), (39, 723534), (42, 671853), (46, 613431), (49, 575874), (63, 447902), (69, 408954), (78, 361767), (91, 310086), (98, 287937), (107, 263718), (117, 241178), (126, 223951), (138, 204477), (147, 191958), (161, 175266), (182, 155043), (207, 136318), (214, 131859), (234, 120589), (273, 103362), (294, 95979), (299, 94374), (321, 87906), (322, 87633), (414, 68159), (441, 63986), (483, 58422), (546, 51681), (598, 47187), (637, 44298), (642, 43953), (749, 37674), (819, 34454), (882, 31993), (897, 31458), (963, 29302), (966, 29211), (1127, 25038), (1274, 22149), (1391, 20286), (1449, 19474), (1498, 18837), (1638, 17227), (1794, 15729), (1911, 14766), (1926, 14651), (2093, 13482), (2247, 12558), (2254, 12519), (2461, 11466), (2691, 10486), (2782, 10143), (2898, 9737), (3381, 8346), (3822, 7383), (4173, 6762), (4186, 6741), (4494, 6279), (4922, 5733), (5243, 5382)]