19819994

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 12942886

約数列:

[1, 2, 17, 34, 47, 79, 94, 157, 158, 314, 799, 1343, 1598, 2669, 2686, 3713, 5338, 7379, 7426, 12403, 14758, 24806, 63121, 125443, 126242, 210851, 250886, 421702, 582941, 1165882, 9909997, 19819994]

約数ペア:

[(1, 19819994), (2, 9909997), (17, 1165882), (34, 582941), (47, 421702), (79, 250886), (94, 210851), (157, 126242), (158, 125443), (314, 63121), (799, 24806), (1343, 14758), (1598, 12403), (2669, 7426), (2686, 7379), (3713, 5338)]