20438386

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{1181}}^1$

素因数の和:1709

約数の個数: 16

約数和(自身を含む): 32552280

約数和(自身を除く): 12113894

約数列:

[1, 2, 17, 34, 509, 1018, 1181, 2362, 8653, 17306, 20077, 40154, 601129, 1202258, 10219193, 20438386]

約数ペア:

[(1, 20438386), (2, 10219193), (17, 1202258), (34, 601129), (509, 40154), (1018, 20077), (1181, 17306), (2362, 8653)]