20649564

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{44123}}^1$

素因数の和:44146

約数の個数: 36

約数和(自身を含む): 56213976

約数和(自身を除く): 35564412

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 44123, 88246, 132369, 176492, 264738, 397107, 529476, 573599, 794214, 1147198, 1588428, 1720797, 2294396, 3441594, 5162391, 6883188, 10324782, 20649564]

約数ペア:

[(1, 20649564), (2, 10324782), (3, 6883188), (4, 5162391), (6, 3441594), (9, 2294396), (12, 1720797), (13, 1588428), (18, 1147198), (26, 794214), (36, 573599), (39, 529476), (52, 397107), (78, 264738), (117, 176492), (156, 132369), (234, 88246), (468, 44123)]