206820719

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{222149}}^1$

素因数の和:222182

約数の個数: 12

約数和(自身を含む): 253251000

約数和(自身を除く): 46430281

約数列:

[1, 7, 19, 49, 133, 931, 222149, 1555043, 4220831, 10885301, 29545817, 206820719]

約数ペア:

[(1, 206820719), (7, 29545817), (19, 10885301), (49, 4220831), (133, 1555043), (931, 222149)]