20172039279

素因数分解:

$3^1\times 7^2\times {\mathrm{137224757}}^1$

素因数の和:137224774

約数の個数: 12

約数和(自身を含む): 31287244824

約数和(自身を除く): 11115205545

約数列:

[1, 3, 7, 21, 49, 147, 137224757, 411674271, 960573299, 2881719897, 6724013093, 20172039279]

約数ペア:

[(1, 20172039279), (3, 6724013093), (7, 2881719897), (21, 960573299), (49, 411674271), (147, 137224757)]