20018649

素因数分解:

$3^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{1283}}^1$

素因数の和:2036

約数の個数: 16

約数和(自身を含む): 30569472

約数和(自身を除く): 10550823

約数列:

[1, 3, 7, 21, 743, 1283, 2229, 3849, 5201, 8981, 15603, 26943, 953269, 2859807, 6672883, 20018649]

約数ペア:

[(1, 20018649), (3, 6672883), (7, 2859807), (21, 953269), (743, 26943), (1283, 15603), (2229, 8981), (3849, 5201)]