20403919864

素因数分解:

$2^3\times {\mathrm{691}}^1\times {\mathrm{3691013}}^1$

素因数の和:3691710

約数の個数: 16

約数和(自身を含む): 38312725320

約数和(自身を除く): 17908805456

約数列:

[1, 2, 4, 8, 691, 1382, 2764, 5528, 3691013, 7382026, 14764052, 29528104, 2550489983, 5100979966, 10201959932, 20403919864]

約数ペア:

[(1, 20403919864), (2, 10201959932), (4, 5100979966), (8, 2550489983), (691, 29528104), (1382, 14764052), (2764, 7382026), (5528, 3691013)]