199440207

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{16427}}^1$

素因数の和:16523

約数の個数: 24

約数和(自身を含む): 307532160

約数和(自身を除く): 108091953

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 16427, 49281, 147843, 312113, 936339, 1166317, 2809017, 3498951, 10496853, 22160023, 66480069, 199440207]

約数ペア:

[(1, 199440207), (3, 66480069), (9, 22160023), (19, 10496853), (57, 3498951), (71, 2809017), (171, 1166317), (213, 936339), (639, 312113), (1349, 147843), (4047, 49281), (12141, 16427)]