164657871

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{18803}}^1$

素因数の和:18955

約数の個数: 24

約数和(自身を含む): 273786240

約数和(自身を除く): 109128369

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 18803, 56409, 131621, 169227, 394863, 1184589, 2613617, 7840851, 18295319, 23522553, 54885957, 164657871]

約数ペア:

[(1, 164657871), (3, 54885957), (7, 23522553), (9, 18295319), (21, 7840851), (63, 2613617), (139, 1184589), (417, 394863), (973, 169227), (1251, 131621), (2919, 56409), (8757, 18803)]