20744776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1153}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 42167160

約数和(自身を除く): 21422384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1153, 1384, 2249, 2306, 4498, 4612, 8996, 9224, 14989, 17992, 29978, 59956, 119912, 199469, 398938, 797876, 1595752, 2593097, 5186194, 10372388, 20744776]

約数ペア:

[(1, 20744776), (2, 10372388), (4, 5186194), (8, 2593097), (13, 1595752), (26, 797876), (52, 398938), (104, 199469), (173, 119912), (346, 59956), (692, 29978), (1153, 17992), (1384, 14989), (2249, 9224), (2306, 8996), (4498, 4612)]