20974352

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:916

約数の個数: 60

約数和(自身を含む): 48854016

約数和(自身を除く): 27879664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 196, 217, 248, 392, 434, 496, 784, 863, 868, 1519, 1726, 1736, 3038, 3452, 3472, 6041, 6076, 6904, 12082, 12152, 13808, 24164, 24304, 26753, 42287, 48328, 53506, 84574, 96656, 107012, 169148, 187271, 214024, 338296, 374542, 428048, 676592, 749084, 1310897, 1498168, 2621794, 2996336, 5243588, 10487176, 20974352]

約数ペア:

[(1, 20974352), (2, 10487176), (4, 5243588), (7, 2996336), (8, 2621794), (14, 1498168), (16, 1310897), (28, 749084), (31, 676592), (49, 428048), (56, 374542), (62, 338296), (98, 214024), (112, 187271), (124, 169148), (196, 107012), (217, 96656), (248, 84574), (392, 53506), (434, 48328), (496, 42287), (784, 26753), (863, 24304), (868, 24164), (1519, 13808), (1726, 12152), (1736, 12082), (3038, 6904), (3452, 6076), (3472, 6041)]