18991728

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:331

約数の個数: 120

約数和(自身を含む): 61746048

約数和(自身を除く): 42754320

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 83, 84, 112, 126, 144, 166, 168, 227, 249, 252, 332, 336, 454, 498, 504, 581, 664, 681, 747, 908, 996, 1008, 1162, 1328, 1362, 1494, 1589, 1743, 1816, 1992, 2043, 2324, 2724, 2988, 3178, 3486, 3632, 3984, 4086, 4648, 4767, 5229, 5448, 5976, 6356, 6972, 8172, 9296, 9534, 10458, 10896, 11952, 12712, 13944, 14301, 16344, 18841, 19068, 20916, 25424, 27888, 28602, 32688, 37682, 38136, 41832, 56523, 57204, 75364, 76272, 83664, 113046, 114408, 131887, 150728, 169569, 226092, 228816, 263774, 301456, 339138, 395661, 452184, 527548, 678276, 791322, 904368, 1055096, 1186983, 1356552, 1582644, 2110192, 2373966, 2713104, 3165288, 4747932, 6330576, 9495864, 18991728]

約数ペア:

[(1, 18991728), (2, 9495864), (3, 6330576), (4, 4747932), (6, 3165288), (7, 2713104), (8, 2373966), (9, 2110192), (12, 1582644), (14, 1356552), (16, 1186983), (18, 1055096), (21, 904368), (24, 791322), (28, 678276), (36, 527548), (42, 452184), (48, 395661), (56, 339138), (63, 301456), (72, 263774), (83, 228816), (84, 226092), (112, 169569), (126, 150728), (144, 131887), (166, 114408), (168, 113046), (227, 83664), (249, 76272), (252, 75364), (332, 57204), (336, 56523), (454, 41832), (498, 38136), (504, 37682), (581, 32688), (664, 28602), (681, 27888), (747, 25424), (908, 20916), (996, 19068), (1008, 18841), (1162, 16344), (1328, 14301), (1362, 13944), (1494, 12712), (1589, 11952), (1743, 10896), (1816, 10458), (1992, 9534), (2043, 9296), (2324, 8172), (2724, 6972), (2988, 6356), (3178, 5976), (3486, 5448), (3632, 5229), (3984, 4767), (4086, 4648)]