19810274

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{571}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14784286

約数列:

[1, 2, 11, 19, 22, 38, 83, 166, 209, 418, 571, 913, 1142, 1577, 1826, 3154, 6281, 10849, 12562, 17347, 21698, 34694, 47393, 94786, 119339, 238678, 521323, 900467, 1042646, 1800934, 9905137, 19810274]

約数ペア:

[(1, 19810274), (2, 9905137), (11, 1800934), (19, 1042646), (22, 900467), (38, 521323), (83, 238678), (166, 119339), (209, 94786), (418, 47393), (571, 34694), (913, 21698), (1142, 17347), (1577, 12562), (1826, 10849), (3154, 6281)]