17420249

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 22190784

約数和(自身を除く): 4770535

約数列:

[1, 7, 11, 77, 121, 131, 157, 847, 917, 1099, 1441, 1727, 10087, 12089, 15851, 18997, 20567, 110957, 132979, 143969, 226237, 1583659, 2488607, 17420249]

約数ペア:

[(1, 17420249), (7, 2488607), (11, 1583659), (77, 226237), (121, 143969), (131, 132979), (157, 110957), (847, 20567), (917, 18997), (1099, 15851), (1441, 12089), (1727, 10087)]