20218284

素因数分解:

$2^2\times 3^2\times {\mathrm{463}}^1\times {\mathrm{1213}}^1$

素因数の和:1686

約数の個数: 36

約数和(自身を含む): 51259936

約数和(自身を除く): 31041652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 463, 926, 1213, 1389, 1852, 2426, 2778, 3639, 4167, 4852, 5556, 7278, 8334, 10917, 14556, 16668, 21834, 43668, 561619, 1123238, 1684857, 2246476, 3369714, 5054571, 6739428, 10109142, 20218284]

約数ペア:

[(1, 20218284), (2, 10109142), (3, 6739428), (4, 5054571), (6, 3369714), (9, 2246476), (12, 1684857), (18, 1123238), (36, 561619), (463, 43668), (926, 21834), (1213, 16668), (1389, 14556), (1852, 10917), (2426, 8334), (2778, 7278), (3639, 5556), (4167, 4852)]