21003313

素因数分解:

${\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 23030784

約数和(自身を除く): 2027471

約数列:

[1, 17, 47, 97, 271, 799, 1649, 4559, 4607, 12737, 26287, 77503, 216529, 446879, 1235489, 21003313]

約数ペア:

[(1, 21003313), (17, 1235489), (47, 446879), (97, 216529), (271, 77503), (799, 26287), (1649, 12737), (4559, 4607)]