18218431

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1061}}^1$

素因数の和:1302

約数の個数: 16

約数和(自身を含む): 22837248

約数和(自身を除く): 4618817

約数列:

[1, 7, 11, 77, 223, 1061, 1561, 2453, 7427, 11671, 17171, 81697, 236603, 1656221, 2602633, 18218431]

約数ペア:

[(1, 18218431), (7, 2602633), (11, 1656221), (77, 236603), (223, 81697), (1061, 17171), (1561, 11671), (2453, 7427)]