20946618

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 61461504

約数和(自身を除く): 40514886

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 17, 18, 21, 22, 33, 34, 42, 49, 51, 63, 66, 77, 98, 99, 102, 119, 126, 127, 147, 153, 154, 187, 198, 231, 238, 254, 294, 306, 357, 374, 381, 441, 462, 539, 561, 693, 714, 762, 833, 882, 889, 1071, 1078, 1122, 1143, 1309, 1386, 1397, 1617, 1666, 1683, 1778, 2142, 2159, 2286, 2499, 2618, 2667, 2794, 3234, 3366, 3927, 4191, 4318, 4851, 4998, 5334, 6223, 6477, 7497, 7854, 8001, 8382, 9163, 9702, 9779, 11781, 12446, 12573, 12954, 14994, 15113, 16002, 18326, 18669, 19431, 19558, 23562, 23749, 25146, 27489, 29337, 30226, 37338, 38862, 45339, 47498, 54978, 56007, 58674, 68453, 71247, 82467, 88011, 90678, 105791, 112014, 136017, 136906, 142494, 164934, 166243, 176022, 205359, 211582, 213741, 272034, 317373, 332486, 410718, 427482, 498729, 616077, 634746, 952119, 997458, 1163701, 1232154, 1496187, 1904238, 2327402, 2992374, 3491103, 6982206, 10473309, 20946618]

約数ペア:

[(1, 20946618), (2, 10473309), (3, 6982206), (6, 3491103), (7, 2992374), (9, 2327402), (11, 1904238), (14, 1496187), (17, 1232154), (18, 1163701), (21, 997458), (22, 952119), (33, 634746), (34, 616077), (42, 498729), (49, 427482), (51, 410718), (63, 332486), (66, 317373), (77, 272034), (98, 213741), (99, 211582), (102, 205359), (119, 176022), (126, 166243), (127, 164934), (147, 142494), (153, 136906), (154, 136017), (187, 112014), (198, 105791), (231, 90678), (238, 88011), (254, 82467), (294, 71247), (306, 68453), (357, 58674), (374, 56007), (381, 54978), (441, 47498), (462, 45339), (539, 38862), (561, 37338), (693, 30226), (714, 29337), (762, 27489), (833, 25146), (882, 23749), (889, 23562), (1071, 19558), (1078, 19431), (1122, 18669), (1143, 18326), (1309, 16002), (1386, 15113), (1397, 14994), (1617, 12954), (1666, 12573), (1683, 12446), (1778, 11781), (2142, 9779), (2159, 9702), (2286, 9163), (2499, 8382), (2618, 8001), (2667, 7854), (2794, 7497), (3234, 6477), (3366, 6223), (3927, 5334), (4191, 4998), (4318, 4851)]