20769164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1301}}^1$

素因数の和:1625

約数の個数: 24

約数和(自身を含む): 39299568

約数和(自身を除く): 18530404

約数列:

[1, 2, 4, 13, 26, 52, 307, 614, 1228, 1301, 2602, 3991, 5204, 7982, 15964, 16913, 33826, 67652, 399407, 798814, 1597628, 5192291, 10384582, 20769164]

約数ペア:

[(1, 20769164), (2, 10384582), (4, 5192291), (13, 1597628), (26, 798814), (52, 399407), (307, 67652), (614, 33826), (1228, 16913), (1301, 15964), (2602, 7982), (3991, 5204)]