212340339

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 320993280

約数和(自身を除く): 108652941

約数列:

[1, 3, 9, 27, 71, 213, 257, 431, 639, 771, 1293, 1917, 2313, 3879, 6939, 11637, 18247, 30601, 54741, 91803, 110767, 164223, 275409, 332301, 492669, 826227, 996903, 2990709, 7864457, 23593371, 70780113, 212340339]

約数ペア:

[(1, 212340339), (3, 70780113), (9, 23593371), (27, 7864457), (71, 2990709), (213, 996903), (257, 826227), (431, 492669), (639, 332301), (771, 275409), (1293, 164223), (1917, 110767), (2313, 91803), (3879, 54741), (6939, 30601), (11637, 18247)]