18641986

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 31622400

約数和(自身を除く): 12980414

約数列:

[1, 2, 11, 22, 47, 94, 121, 149, 242, 298, 517, 1034, 1331, 1639, 2662, 3278, 5687, 7003, 11374, 14006, 18029, 36058, 62557, 77033, 125114, 154066, 198319, 396638, 847363, 1694726, 9320993, 18641986]

約数ペア:

[(1, 18641986), (2, 9320993), (11, 1694726), (22, 847363), (47, 396638), (94, 198319), (121, 154066), (149, 125114), (242, 77033), (298, 62557), (517, 36058), (1034, 18029), (1331, 14006), (1639, 11374), (2662, 7003), (3278, 5687)]