19782162

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 45422208

約数和(自身を除く): 25640046

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 138, 142, 207, 213, 414, 426, 639, 673, 1278, 1346, 1633, 2019, 3266, 4038, 4899, 6057, 9798, 12114, 14697, 15479, 29394, 30958, 46437, 47783, 92874, 95566, 139311, 143349, 278622, 286698, 430047, 860094, 1099009, 2198018, 3297027, 6594054, 9891081, 19782162]

約数ペア:

[(1, 19782162), (2, 9891081), (3, 6594054), (6, 3297027), (9, 2198018), (18, 1099009), (23, 860094), (46, 430047), (69, 286698), (71, 278622), (138, 143349), (142, 139311), (207, 95566), (213, 92874), (414, 47783), (426, 46437), (639, 30958), (673, 29394), (1278, 15479), (1346, 14697), (1633, 12114), (2019, 9798), (3266, 6057), (4038, 4899)]