19779516

素因数分解:

$2^2\times 3^2\times {\mathrm{549431}}^1$

素因数の和:549441

約数の個数: 18

約数和(自身を含む): 49998312

約数和(自身を除く): 30218796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 549431, 1098862, 1648293, 2197724, 3296586, 4944879, 6593172, 9889758, 19779516]

約数ペア:

[(1, 19779516), (2, 9889758), (3, 6593172), (4, 4944879), (6, 3296586), (9, 2197724), (12, 1648293), (18, 1098862), (36, 549431)]