18757389

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 11931891

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 887, 1007, 1113, 2661, 3021, 6209, 7049, 16853, 18627, 21147, 47011, 50559, 117971, 141033, 329077, 353913, 893209, 987231, 2679627, 6252463, 18757389]

約数ペア:

[(1, 18757389), (3, 6252463), (7, 2679627), (19, 987231), (21, 893209), (53, 353913), (57, 329077), (133, 141033), (159, 117971), (371, 50559), (399, 47011), (887, 21147), (1007, 18627), (1113, 16853), (2661, 7049), (3021, 6209)]