20187218989

素因数分解:

$7^2\times {\mathrm{1013}}^1\times {\mathrm{406697}}^1$

素因数の和:407724

約数の個数: 12

約数和(自身を含む): 23506331004

約数和(自身を除く): 3319112015

約数列:

[1, 7, 49, 1013, 7091, 49637, 406697, 2846879, 19928153, 411984061, 2883888427, 20187218989]

約数ペア:

[(1, 20187218989), (7, 2883888427), (49, 411984061), (1013, 19928153), (7091, 2846879), (49637, 406697)]