18987907974

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{37139}}^1$

素因数の和:37242

約数の個数: 96

約数和(自身を含む): 46336458240

約数和(自身を除く): 27348550266

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 47, 49, 74, 94, 98, 111, 141, 147, 222, 259, 282, 294, 329, 518, 658, 777, 987, 1554, 1739, 1813, 1974, 2303, 3478, 3626, 4606, 5217, 5439, 6909, 10434, 10878, 12173, 13818, 24346, 36519, 37139, 73038, 74278, 85211, 111417, 170422, 222834, 255633, 259973, 511266, 519946, 779919, 1374143, 1559838, 1745533, 1819811, 2748286, 3491066, 3639622, 4122429, 5236599, 5459433, 8244858, 9619001, 10473198, 10918866, 12218731, 19238002, 24437462, 28857003, 36656193, 57714006, 64584721, 67333007, 73312386, 85531117, 129169442, 134666014, 171062234, 193754163, 201999021, 256593351, 387508326, 403998042, 452093047, 513186702, 904186094, 1356279141, 2712558282, 3164651329, 6329302658, 9493953987, 18987907974]

約数ペア:

[(1, 18987907974), (2, 9493953987), (3, 6329302658), (6, 3164651329), (7, 2712558282), (14, 1356279141), (21, 904186094), (37, 513186702), (42, 452093047), (47, 403998042), (49, 387508326), (74, 256593351), (94, 201999021), (98, 193754163), (111, 171062234), (141, 134666014), (147, 129169442), (222, 85531117), (259, 73312386), (282, 67333007), (294, 64584721), (329, 57714006), (518, 36656193), (658, 28857003), (777, 24437462), (987, 19238002), (1554, 12218731), (1739, 10918866), (1813, 10473198), (1974, 9619001), (2303, 8244858), (3478, 5459433), (3626, 5236599), (4606, 4122429), (5217, 3639622), (5439, 3491066), (6909, 2748286), (10434, 1819811), (10878, 1745533), (12173, 1559838), (13818, 1374143), (24346, 779919), (36519, 519946), (37139, 511266), (73038, 259973), (74278, 255633), (85211, 222834), (111417, 170422)]