20765872

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:877

約数の個数: 40

約数和(自身を含む): 42613344

約数和(自身を除く): 21847472

約数列:

[1, 2, 4, 8, 16, 23, 46, 73, 92, 146, 184, 292, 368, 584, 773, 1168, 1546, 1679, 3092, 3358, 6184, 6716, 12368, 13432, 17779, 26864, 35558, 56429, 71116, 112858, 142232, 225716, 284464, 451432, 902864, 1297867, 2595734, 5191468, 10382936, 20765872]

約数ペア:

[(1, 20765872), (2, 10382936), (4, 5191468), (8, 2595734), (16, 1297867), (23, 902864), (46, 451432), (73, 284464), (92, 225716), (146, 142232), (184, 112858), (292, 71116), (368, 56429), (584, 35558), (773, 26864), (1168, 17779), (1546, 13432), (1679, 12368), (3092, 6716), (3358, 6184)]