221455887

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{54721}}^1$

素因数の和:54814

約数の個数: 16

約数和(自身を含む): 315198720

約数和(自身を除く): 93742833

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 54721, 164163, 1039699, 3119097, 3885191, 11655573, 73818629, 221455887]

約数ペア:

[(1, 221455887), (3, 73818629), (19, 11655573), (57, 3885191), (71, 3119097), (213, 1039699), (1349, 164163), (4047, 54721)]