20812964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{877}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 38719800

約数和(自身を除く): 17906836

約数列:

[1, 2, 4, 17, 34, 68, 349, 698, 877, 1396, 1754, 3508, 5933, 11866, 14909, 23732, 29818, 59636, 306073, 612146, 1224292, 5203241, 10406482, 20812964]

約数ペア:

[(1, 20812964), (2, 10406482), (4, 5203241), (17, 1224292), (34, 612146), (68, 306073), (349, 59636), (698, 29818), (877, 23732), (1396, 14909), (1754, 11866), (3508, 5933)]