21286473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{5101}}^1$

素因数の和:5224

約数の個数: 16

約数和(自身を含む): 30856896

約数和(自身を除く): 9570423

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 5101, 15303, 66313, 198939, 545807, 1637421, 7095491, 21286473]

約数ペア:

[(1, 21286473), (3, 7095491), (13, 1637421), (39, 545807), (107, 198939), (321, 66313), (1391, 15303), (4173, 5101)]