18920664

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 61888320

約数和(自身を除く): 42967656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 42, 49, 56, 62, 63, 72, 84, 93, 98, 124, 126, 147, 168, 173, 186, 196, 217, 248, 252, 279, 294, 346, 372, 392, 434, 441, 504, 519, 558, 588, 651, 692, 744, 868, 882, 1038, 1116, 1176, 1211, 1302, 1384, 1519, 1557, 1736, 1764, 1953, 2076, 2232, 2422, 2604, 3038, 3114, 3528, 3633, 3906, 4152, 4557, 4844, 5208, 5363, 6076, 6228, 7266, 7812, 8477, 9114, 9688, 10726, 10899, 12152, 12456, 13671, 14532, 15624, 16089, 16954, 18228, 21452, 21798, 25431, 27342, 29064, 32178, 33908, 36456, 37541, 42904, 43596, 48267, 50862, 54684, 64356, 67816, 75082, 76293, 87192, 96534, 101724, 109368, 112623, 128712, 150164, 152586, 193068, 203448, 225246, 262787, 300328, 305172, 337869, 386136, 450492, 525574, 610344, 675738, 788361, 900984, 1051148, 1351476, 1576722, 2102296, 2365083, 2702952, 3153444, 4730166, 6306888, 9460332, 18920664]

約数ペア:

[(1, 18920664), (2, 9460332), (3, 6306888), (4, 4730166), (6, 3153444), (7, 2702952), (8, 2365083), (9, 2102296), (12, 1576722), (14, 1351476), (18, 1051148), (21, 900984), (24, 788361), (28, 675738), (31, 610344), (36, 525574), (42, 450492), (49, 386136), (56, 337869), (62, 305172), (63, 300328), (72, 262787), (84, 225246), (93, 203448), (98, 193068), (124, 152586), (126, 150164), (147, 128712), (168, 112623), (173, 109368), (186, 101724), (196, 96534), (217, 87192), (248, 76293), (252, 75082), (279, 67816), (294, 64356), (346, 54684), (372, 50862), (392, 48267), (434, 43596), (441, 42904), (504, 37541), (519, 36456), (558, 33908), (588, 32178), (651, 29064), (692, 27342), (744, 25431), (868, 21798), (882, 21452), (1038, 18228), (1116, 16954), (1176, 16089), (1211, 15624), (1302, 14532), (1384, 13671), (1519, 12456), (1557, 12152), (1736, 10899), (1764, 10726), (1953, 9688), (2076, 9114), (2232, 8477), (2422, 7812), (2604, 7266), (3038, 6228), (3114, 6076), (3528, 5363), (3633, 5208), (3906, 4844), (4152, 4557)]