221235189

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{339839}}^1$

素因数の和:339880

約数の個数: 16

約数和(自身を含む): 347996160

約数和(自身を除く): 126760971

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 339839, 1019517, 2378873, 7136619, 10535009, 31605027, 73745063, 221235189]

約数ペア:

[(1, 221235189), (3, 73745063), (7, 31605027), (21, 10535009), (31, 7136619), (93, 2378873), (217, 1019517), (651, 339839)]