18354609

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 33185152

約数和(自身を除く): 14830543

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 219, 273, 307, 511, 657, 819, 921, 949, 1533, 2149, 2763, 2847, 3991, 4599, 6447, 6643, 8541, 11973, 19341, 19929, 22411, 27937, 35919, 59787, 67233, 83811, 156877, 201699, 251433, 291343, 470631, 874029, 1411893, 2039401, 2622087, 6118203, 18354609]

約数ペア:

[(1, 18354609), (3, 6118203), (7, 2622087), (9, 2039401), (13, 1411893), (21, 874029), (39, 470631), (63, 291343), (73, 251433), (91, 201699), (117, 156877), (219, 83811), (273, 67233), (307, 59787), (511, 35919), (657, 27937), (819, 22411), (921, 19929), (949, 19341), (1533, 11973), (2149, 8541), (2763, 6643), (2847, 6447), (3991, 4599)]