19819383

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 9072777

約数列:

[1, 3, 29, 37, 47, 87, 111, 131, 141, 393, 1073, 1363, 1739, 3219, 3799, 4089, 4847, 5217, 6157, 11397, 14541, 18471, 50431, 140563, 151293, 178553, 227809, 421689, 535659, 683427, 6606461, 19819383]

約数ペア:

[(1, 19819383), (3, 6606461), (29, 683427), (37, 535659), (47, 421689), (87, 227809), (111, 178553), (131, 151293), (141, 140563), (393, 50431), (1073, 18471), (1363, 14541), (1739, 11397), (3219, 6157), (3799, 5217), (4089, 4847)]