19138861

素因数分解:

$7^2\times {\mathrm{619}}^1\times {\mathrm{631}}^1$

素因数の和:1264

約数の個数: 12

約数和(自身を含む): 22334880

約数和(自身を除く): 3196019

約数列:

[1, 7, 49, 619, 631, 4333, 4417, 30331, 30919, 390589, 2734123, 19138861]

約数ペア:

[(1, 19138861), (7, 2734123), (49, 390589), (619, 30919), (631, 30331), (4333, 4417)]