21089734

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17903}}^1$

素因数の和:17955

約数の個数: 16

約数和(自身を含む): 34375680

約数和(自身を除く): 13285946

約数列:

[1, 2, 19, 31, 38, 62, 589, 1178, 17903, 35806, 340157, 554993, 680314, 1109986, 10544867, 21089734]

約数ペア:

[(1, 21089734), (2, 10544867), (19, 1109986), (31, 680314), (38, 554993), (62, 340157), (589, 35806), (1178, 17903)]