18156993

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{983}}^1$

素因数の和:1164

約数の個数: 16

約数和(自身を含む): 24938496

約数和(自身を除く): 6781503

約数列:

[1, 3, 47, 131, 141, 393, 983, 2949, 6157, 18471, 46201, 128773, 138603, 386319, 6052331, 18156993]

約数ペア:

[(1, 18156993), (3, 6052331), (47, 386319), (131, 138603), (141, 128773), (393, 46201), (983, 18471), (2949, 6157)]