19781174

素因数分解:

$2^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1721}}^1$

素因数の和:2551

約数の個数: 16

約数和(自身を含む): 33971616

約数和(自身を除く): 14190442

約数列:

[1, 2, 7, 14, 821, 1642, 1721, 3442, 5747, 11494, 12047, 24094, 1412941, 2825882, 9890587, 19781174]

約数ペア:

[(1, 19781174), (2, 9890587), (7, 2825882), (14, 1412941), (821, 24094), (1642, 12047), (1721, 11494), (3442, 5747)]