21263178

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{154081}}^1$

素因数の和:154109

約数の個数: 16

約数和(自身を含む): 44375616

約数和(自身を除く): 23112438

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 154081, 308162, 462243, 924486, 3543863, 7087726, 10631589, 21263178]

約数ペア:

[(1, 21263178), (2, 10631589), (3, 7087726), (6, 3543863), (23, 924486), (46, 462243), (69, 308162), (138, 154081)]