18697273

素因数分解:

$7^3\times {\mathrm{19}}^2\times {\mathrm{151}}^1$

素因数の和:210

約数の個数: 24

約数和(自身を含む): 23164800

約数和(自身を除く): 4467527

約数列:

[1, 7, 19, 49, 133, 151, 343, 361, 931, 1057, 2527, 2869, 6517, 7399, 17689, 20083, 51793, 54511, 123823, 140581, 381577, 984067, 2671039, 18697273]

約数ペア:

[(1, 18697273), (7, 2671039), (19, 984067), (49, 381577), (133, 140581), (151, 123823), (343, 54511), (361, 51793), (931, 20083), (1057, 17689), (2527, 7399), (2869, 6517)]