19212802

素因数分解:

$2^1\times 7^4\times {\mathrm{4001}}^1$

素因数の和:4031

約数の個数: 20

約数和(自身を含む): 33628806

約数和(自身を除く): 14416004

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4001, 4802, 8002, 28007, 56014, 196049, 392098, 1372343, 2744686, 9606401, 19212802]

約数ペア:

[(1, 19212802), (2, 9606401), (7, 2744686), (14, 1372343), (49, 392098), (98, 196049), (343, 56014), (686, 28007), (2401, 8002), (4001, 4802)]