19818393

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4397

約数の個数: 24

約数和(自身を含む): 31737600

約数和(自身を除く): 11919207

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4349, 4557, 13047, 30443, 91329, 134819, 213101, 404457, 639303, 943733, 2831199, 6606131, 19818393]

約数ペア:

[(1, 19818393), (3, 6606131), (7, 2831199), (21, 943733), (31, 639303), (49, 404457), (93, 213101), (147, 134819), (217, 91329), (651, 30443), (1519, 13047), (4349, 4557)]