212199889

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 234861120

約数和(自身を除く): 22661231

約数列:

[1, 11, 101, 389, 491, 1111, 4279, 5401, 39289, 49591, 190999, 432179, 545501, 2100989, 19290899, 212199889]

約数ペア:

[(1, 212199889), (11, 19290899), (101, 2100989), (389, 545501), (491, 432179), (1111, 190999), (4279, 49591), (5401, 39289)]