20322081

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 32887296

約数和(自身を除く): 12565215

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 169, 279, 403, 431, 507, 1209, 1293, 1521, 3627, 3879, 5239, 5603, 13361, 15717, 16809, 40083, 47151, 50427, 72839, 120249, 173693, 218517, 521079, 655551, 1563237, 2258009, 6774027, 20322081]

約数ペア:

[(1, 20322081), (3, 6774027), (9, 2258009), (13, 1563237), (31, 655551), (39, 521079), (93, 218517), (117, 173693), (169, 120249), (279, 72839), (403, 50427), (431, 47151), (507, 40083), (1209, 16809), (1293, 15717), (1521, 13361), (3627, 5603), (3879, 5239)]