21135992

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64439}}^1$

素因数の和:64486

約数の個数: 16

約数和(自身を含む): 40597200

約数和(自身を除く): 19461208

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64439, 128878, 257756, 515512, 2641999, 5283998, 10567996, 21135992]

約数ペア:

[(1, 21135992), (2, 10567996), (4, 5283998), (8, 2641999), (41, 515512), (82, 257756), (164, 128878), (328, 64439)]