15431781

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 23040000

約数和(自身を除く): 7608219

約数列:

[1, 3, 19, 23, 57, 69, 79, 149, 237, 437, 447, 1311, 1501, 1817, 2831, 3427, 4503, 5451, 8493, 10281, 11771, 34523, 35313, 65113, 103569, 195339, 223649, 270733, 670947, 812199, 5143927, 15431781]

約数ペア:

[(1, 15431781), (3, 5143927), (19, 812199), (23, 670947), (57, 270733), (69, 223649), (79, 195339), (149, 103569), (237, 65113), (437, 35313), (447, 34523), (1311, 11771), (1501, 10281), (1817, 8493), (2831, 5451), (3427, 4503)]