21304905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45817}}^1$

素因数の和:45856

約数の個数: 16

約数和(自身を含む): 35188224

約数和(自身を除く): 13883319

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45817, 137451, 229085, 687255, 1420327, 4260981, 7101635, 21304905]

約数ペア:

[(1, 21304905), (3, 7101635), (5, 4260981), (15, 1420327), (31, 687255), (93, 229085), (155, 137451), (465, 45817)]