21740272

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7507}}^1$

素因数の和:7696

約数の個数: 20

約数和(自身を含む): 42360136

約数和(自身を除く): 20619864

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7507, 15014, 30028, 60056, 120112, 1358767, 2717534, 5435068, 10870136, 21740272]

約数ペア:

[(1, 21740272), (2, 10870136), (4, 5435068), (8, 2717534), (16, 1358767), (181, 120112), (362, 60056), (724, 30028), (1448, 15014), (2896, 7507)]