217933457

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{1549}}^1$

素因数の和:1856

約数の個数: 16

約数和(自身を含む): 252960000

約数和(自身を除く): 35026543

約数列:

[1, 7, 101, 199, 707, 1393, 1549, 10843, 20099, 140693, 156449, 308251, 1095143, 2157757, 31133351, 217933457]

約数ペア:

[(1, 217933457), (7, 31133351), (101, 2157757), (199, 1095143), (707, 308251), (1393, 156449), (1549, 140693), (10843, 20099)]