20861504

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{4591}}^1$

素因数の和:4674

約数の個数: 28

約数和(自身を含む): 41989248

約数和(自身を除く): 21127744

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 568, 1136, 2272, 4544, 4591, 9182, 18364, 36728, 73456, 146912, 293824, 325961, 651922, 1303844, 2607688, 5215376, 10430752, 20861504]

約数ペア:

[(1, 20861504), (2, 10430752), (4, 5215376), (8, 2607688), (16, 1303844), (32, 651922), (64, 325961), (71, 293824), (142, 146912), (284, 73456), (568, 36728), (1136, 18364), (2272, 9182), (4544, 4591)]