20795984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{683}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 44273952

約数和(自身を除く): 23477968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 173, 176, 346, 683, 692, 1366, 1384, 1903, 2732, 2768, 3806, 5464, 7513, 7612, 10928, 15026, 15224, 30052, 30448, 60104, 118159, 120208, 236318, 472636, 945272, 1299749, 1890544, 2599498, 5198996, 10397992, 20795984]

約数ペア:

[(1, 20795984), (2, 10397992), (4, 5198996), (8, 2599498), (11, 1890544), (16, 1299749), (22, 945272), (44, 472636), (88, 236318), (173, 120208), (176, 118159), (346, 60104), (683, 30448), (692, 30052), (1366, 15224), (1384, 15026), (1903, 10928), (2732, 7612), (2768, 7513), (3806, 5464)]