215549841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1765

約数の個数: 32

約数和(自身を含む): 320911360

約数和(自身を除く): 105361519

約数列:

[1, 3, 13, 39, 43, 79, 129, 237, 559, 1027, 1627, 1677, 3081, 3397, 4881, 10191, 21151, 44161, 63453, 69961, 128533, 132483, 209883, 385599, 909493, 1670929, 2728479, 5012787, 5526919, 16580757, 71849947, 215549841]

約数ペア:

[(1, 215549841), (3, 71849947), (13, 16580757), (39, 5526919), (43, 5012787), (79, 2728479), (129, 1670929), (237, 909493), (559, 385599), (1027, 209883), (1627, 132483), (1677, 128533), (3081, 69961), (3397, 63453), (4881, 44161), (10191, 21151)]