18540219

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 27360000

約数和(自身を除く): 8819781

約数列:

[1, 3, 19, 37, 57, 59, 111, 149, 177, 447, 703, 1121, 2109, 2183, 2831, 3363, 5513, 6549, 8493, 8791, 16539, 26373, 41477, 104747, 124431, 167029, 314241, 325267, 501087, 975801, 6180073, 18540219]

約数ペア:

[(1, 18540219), (3, 6180073), (19, 975801), (37, 501087), (57, 325267), (59, 314241), (111, 167029), (149, 124431), (177, 104747), (447, 41477), (703, 26373), (1121, 16539), (2109, 8791), (2183, 8493), (2831, 6549), (3363, 5513)]