21026559

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{1259}}^1$

素因数の和:1574

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 8608641

約数列:

[1, 3, 19, 57, 293, 879, 1259, 3777, 5567, 16701, 23921, 71763, 368887, 1106661, 7008853, 21026559]

約数ペア:

[(1, 21026559), (3, 7008853), (19, 1106661), (57, 368887), (293, 71763), (879, 23921), (1259, 16701), (3777, 5567)]