209807973

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{439849}}^1$

素因数の和:439908

約数の個数: 12

約数和(自身を含む): 308774700

約数和(自身を除く): 98966727

約数列:

[1, 3, 9, 53, 159, 477, 439849, 1319547, 3958641, 23311997, 69935991, 209807973]

約数ペア:

[(1, 209807973), (3, 69935991), (9, 23311997), (53, 3958641), (159, 1319547), (477, 439849)]