19971242

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:378

約数の個数: 24

約数和(自身を含む): 32004000

約数和(自身を除く): 12032758

約数列:

[1, 2, 19, 38, 139, 199, 278, 361, 398, 722, 2641, 3781, 5282, 7562, 27661, 50179, 55322, 71839, 100358, 143678, 525559, 1051118, 9985621, 19971242]

約数ペア:

[(1, 19971242), (2, 9985621), (19, 1051118), (38, 525559), (139, 143678), (199, 100358), (278, 71839), (361, 55322), (398, 50179), (722, 27661), (2641, 7562), (3781, 5282)]