21328994

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1051}}^1$

素因数の和:1265

約数の個数: 16

約数和(自身を含む): 32696160

約数和(自身を除く): 11367166

約数列:

[1, 2, 73, 139, 146, 278, 1051, 2102, 10147, 20294, 76723, 146089, 153446, 292178, 10664497, 21328994]

約数ペア:

[(1, 21328994), (2, 10664497), (73, 292178), (139, 153446), (146, 146089), (278, 76723), (1051, 20294), (2102, 10147)]