261819558

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1321}}^1$

素因数の和:1371

約数の個数: 144

約数和(自身を含む): 768007968

約数和(自身を除く): 506188410

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 33, 39, 42, 63, 66, 77, 78, 91, 99, 117, 121, 126, 143, 154, 182, 198, 231, 234, 242, 273, 286, 363, 429, 462, 546, 693, 726, 819, 847, 858, 1001, 1089, 1287, 1321, 1386, 1573, 1638, 1694, 2002, 2178, 2541, 2574, 2642, 3003, 3146, 3963, 4719, 5082, 6006, 7623, 7926, 9009, 9247, 9438, 11011, 11889, 14157, 14531, 15246, 17173, 18018, 18494, 22022, 23778, 27741, 28314, 29062, 33033, 34346, 43593, 51519, 55482, 66066, 83223, 87186, 99099, 101717, 103038, 120211, 130779, 154557, 159841, 166446, 188903, 198198, 203434, 240422, 261558, 305151, 309114, 319682, 360633, 377806, 479523, 566709, 610302, 721266, 915453, 959046, 1081899, 1118887, 1133418, 1322321, 1438569, 1700127, 1830906, 2077933, 2163798, 2237774, 2644642, 2877138, 3356661, 3400254, 3966963, 4155866, 6233799, 6713322, 7933926, 10069983, 11900889, 12467598, 14545531, 18701397, 20139966, 23801778, 29091062, 37402794, 43636593, 87273186, 130909779, 261819558]

約数ペア:

[(1, 261819558), (2, 130909779), (3, 87273186), (6, 43636593), (7, 37402794), (9, 29091062), (11, 23801778), (13, 20139966), (14, 18701397), (18, 14545531), (21, 12467598), (22, 11900889), (26, 10069983), (33, 7933926), (39, 6713322), (42, 6233799), (63, 4155866), (66, 3966963), (77, 3400254), (78, 3356661), (91, 2877138), (99, 2644642), (117, 2237774), (121, 2163798), (126, 2077933), (143, 1830906), (154, 1700127), (182, 1438569), (198, 1322321), (231, 1133418), (234, 1118887), (242, 1081899), (273, 959046), (286, 915453), (363, 721266), (429, 610302), (462, 566709), (546, 479523), (693, 377806), (726, 360633), (819, 319682), (847, 309114), (858, 305151), (1001, 261558), (1089, 240422), (1287, 203434), (1321, 198198), (1386, 188903), (1573, 166446), (1638, 159841), (1694, 154557), (2002, 130779), (2178, 120211), (2541, 103038), (2574, 101717), (2642, 99099), (3003, 87186), (3146, 83223), (3963, 66066), (4719, 55482), (5082, 51519), (6006, 43593), (7623, 34346), (7926, 33033), (9009, 29062), (9247, 28314), (9438, 27741), (11011, 23778), (11889, 22022), (14157, 18494), (14531, 18018), (15246, 17173)]