17851743

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 32288256

約数和(自身を除く): 14436513

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 71, 91, 117, 213, 273, 307, 497, 639, 819, 921, 923, 1491, 2149, 2763, 2769, 3991, 4473, 6447, 6461, 8307, 11973, 19341, 19383, 21797, 27937, 35919, 58149, 65391, 83811, 152579, 196173, 251433, 283361, 457737, 850083, 1373211, 1983527, 2550249, 5950581, 17851743]

約数ペア:

[(1, 17851743), (3, 5950581), (7, 2550249), (9, 1983527), (13, 1373211), (21, 850083), (39, 457737), (63, 283361), (71, 251433), (91, 196173), (117, 152579), (213, 83811), (273, 65391), (307, 58149), (497, 35919), (639, 27937), (819, 21797), (921, 19383), (923, 19341), (1491, 11973), (2149, 8307), (2763, 6461), (2769, 6447), (3991, 4473)]