19949601

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49999}}^1$

素因数の和:50028

約数の個数: 16

約数和(自身を含む): 32000000

約数和(自身を除く): 12050399

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 49999, 149997, 349993, 949981, 1049979, 2849943, 6649867, 19949601]

約数ペア:

[(1, 19949601), (3, 6649867), (7, 2849943), (19, 1049979), (21, 949981), (57, 349993), (133, 149997), (399, 49999)]