21807117

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{42509}}^1$

素因数の和:42537

約数の個数: 16

約数和(自身を含む): 34008000

約数和(自身を除く): 12200883

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 42509, 127527, 382581, 807671, 1147743, 2423013, 7269039, 21807117]

約数ペア:

[(1, 21807117), (3, 7269039), (9, 2423013), (19, 1147743), (27, 807671), (57, 382581), (171, 127527), (513, 42509)]