19677712

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{7109}}^1$

素因数の和:7290

約数の個数: 20

約数和(自身を含む): 38351340

約数和(自身を除く): 18673628

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 7109, 14218, 28436, 56872, 113744, 1229857, 2459714, 4919428, 9838856, 19677712]

約数ペア:

[(1, 19677712), (2, 9838856), (4, 4919428), (8, 2459714), (16, 1229857), (173, 113744), (346, 56872), (692, 28436), (1384, 14218), (2768, 7109)]