20489337

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3089}}^1$

素因数の和:3173

約数の個数: 24

約数和(自身を含む): 32778720

約数和(自身を除く): 12289383

約数列:

[1, 3, 9, 11, 33, 67, 99, 201, 603, 737, 2211, 3089, 6633, 9267, 27801, 33979, 101937, 206963, 305811, 620889, 1862667, 2276593, 6829779, 20489337]

約数ペア:

[(1, 20489337), (3, 6829779), (9, 2276593), (11, 1862667), (33, 620889), (67, 305811), (99, 206963), (201, 101937), (603, 33979), (737, 27801), (2211, 9267), (3089, 6633)]