21494739

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{15277}}^1$

素因数の和:15354

約数の個数: 16

約数和(自身を含む): 33244928

約数和(自身を除く): 11750189

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 15277, 45831, 106939, 320817, 1023559, 3070677, 7164913, 21494739]

約数ペア:

[(1, 21494739), (3, 7164913), (7, 3070677), (21, 1023559), (67, 320817), (201, 106939), (469, 45831), (1407, 15277)]