639394

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:537

約数の個数: 16

約数和(自身を含む): 1108800

約数和(自身を除く): 469406

約数列:

[1, 2, 7, 14, 109, 218, 419, 763, 838, 1526, 2933, 5866, 45671, 91342, 319697, 639394]

約数ペア:

[(1, 639394), (2, 319697), (7, 91342), (14, 45671), (109, 5866), (218, 2933), (419, 1526), (763, 838)]