21187544

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5647}}^1$

素因数の和:5727

約数の個数: 32

約数和(自身を含む): 46087680

約数和(自身を除く): 24900136

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5647, 11294, 22588, 39529, 45176, 79058, 158116, 316232, 378349, 756698, 1513396, 2648443, 3026792, 5296886, 10593772, 21187544]

約数ペア:

[(1, 21187544), (2, 10593772), (4, 5296886), (7, 3026792), (8, 2648443), (14, 1513396), (28, 756698), (56, 378349), (67, 316232), (134, 158116), (268, 79058), (469, 45176), (536, 39529), (938, 22588), (1876, 11294), (3752, 5647)]