21383997

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{647}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 29859840

約数和(自身を除く): 8475843

約数列:

[1, 3, 23, 69, 479, 647, 1437, 1941, 11017, 14881, 33051, 44643, 309913, 929739, 7127999, 21383997]

約数ペア:

[(1, 21383997), (3, 7127999), (23, 929739), (69, 309913), (479, 44643), (647, 33051), (1437, 14881), (1941, 11017)]