19953890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181399}}^1$

素因数の和:181417

約数の個数: 16

約数和(自身を含む): 39182400

約数和(自身を除く): 19228510

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181399, 362798, 906995, 1813990, 1995389, 3990778, 9976945, 19953890]

約数ペア:

[(1, 19953890), (2, 9976945), (5, 3990778), (10, 1995389), (11, 1813990), (22, 906995), (55, 362798), (110, 181399)]