20409563

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 16

約数和(自身を含む): 21998592

約数和(自身を除く): 1589029

約数列:

[1, 31, 43, 61, 251, 1333, 1891, 2623, 7781, 10793, 15311, 81313, 334583, 474641, 658373, 20409563]

約数ペア:

[(1, 20409563), (31, 658373), (43, 474641), (61, 334583), (251, 81313), (1333, 15311), (1891, 10793), (2623, 7781)]