20218913

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4561}}^1$

素因数の和:4616

約数の個数: 16

約数和(自身を含む): 24525312

約数和(自身を除く): 4306399

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4561, 50171, 59293, 141391, 652223, 1555301, 1838083, 20218913]

約数ペア:

[(1, 20218913), (11, 1838083), (13, 1555301), (31, 652223), (143, 141391), (341, 59293), (403, 50171), (4433, 4561)]