20365863

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6977}}^1$

素因数の和:7126

約数の個数: 16

約数和(自身を含む): 31261440

約数和(自身を除く): 10895577

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6977, 20931, 48839, 146517, 969803, 2909409, 6788621, 20365863]

約数ペア:

[(1, 20365863), (3, 6788621), (7, 2909409), (21, 969803), (139, 146517), (417, 48839), (973, 20931), (2919, 6977)]