20417254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71389}}^1$

素因数の和:71415

約数の個数: 16

約数和(自身を含む): 35980560

約数和(自身を除く): 15563306

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 71389, 142778, 785279, 928057, 1570558, 1856114, 10208627, 20417254]

約数ペア:

[(1, 20417254), (2, 10208627), (11, 1856114), (13, 1570558), (22, 928057), (26, 785279), (143, 142778), (286, 71389)]