19199323

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 23998464

約数和(自身を除く): 4799141

約数列:

[1, 11, 13, 31, 61, 71, 143, 341, 403, 671, 781, 793, 923, 1891, 2201, 4331, 4433, 8723, 10153, 20801, 24211, 24583, 28613, 47641, 56303, 134261, 270413, 314743, 619333, 1476871, 1745393, 19199323]

約数ペア:

[(1, 19199323), (11, 1745393), (13, 1476871), (31, 619333), (61, 314743), (71, 270413), (143, 134261), (341, 56303), (403, 47641), (671, 28613), (781, 24583), (793, 24211), (923, 20801), (1891, 10153), (2201, 8723), (4331, 4433)]