21865839

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{1217}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 29992032

約数和(自身を除く): 8126193

約数列:

[1, 3, 53, 113, 159, 339, 1217, 3651, 5989, 17967, 64501, 137521, 193503, 412563, 7288613, 21865839]

約数ペア:

[(1, 21865839), (3, 7288613), (53, 412563), (113, 193503), (159, 137521), (339, 64501), (1217, 17967), (3651, 5989)]