19978126

素因数分解:

$2^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1931}}^1$

素因数の和:2679

約数の個数: 16

約数和(自身を含む): 34312320

約数和(自身を除く): 14334194

約数列:

[1, 2, 7, 14, 739, 1478, 1931, 3862, 5173, 10346, 13517, 27034, 1427009, 2854018, 9989063, 19978126]

約数ペア:

[(1, 19978126), (2, 9989063), (7, 2854018), (14, 1427009), (739, 27034), (1478, 13517), (1931, 10346), (3862, 5173)]