211355905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{20411}}^1$

素因数の和:20544

約数の個数: 16

約数和(自身を含む): 269438400

約数和(自身を除く): 58082495

約数列:

[1, 5, 19, 95, 109, 545, 2071, 10355, 20411, 102055, 387809, 1939045, 2224799, 11123995, 42271181, 211355905]

約数ペア:

[(1, 211355905), (5, 42271181), (19, 11123995), (95, 2224799), (109, 1939045), (545, 387809), (2071, 102055), (10355, 20411)]