197820791

素因数分解:

$7^4\times {\mathrm{47}}^1\times {\mathrm{1753}}^1$

素因数の和:1828

約数の個数: 20

約数和(自身を含む): 235821792

約数和(自身を除く): 38001001

約数列:

[1, 7, 47, 49, 329, 343, 1753, 2303, 2401, 12271, 16121, 82391, 85897, 112847, 576737, 601279, 4037159, 4208953, 28260113, 197820791]

約数ペア:

[(1, 197820791), (7, 28260113), (47, 4208953), (49, 4037159), (329, 601279), (343, 576737), (1753, 112847), (2303, 85897), (2401, 82391), (12271, 16121)]