19748210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22189}}^1$

素因数の和:22285

約数の個数: 16

約数和(自身を含む): 35947800

約数和(自身を除く): 16199590

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22189, 44378, 110945, 221890, 1974821, 3949642, 9874105, 19748210]

約数ペア:

[(1, 19748210), (2, 9874105), (5, 3949642), (10, 1974821), (89, 221890), (178, 110945), (445, 44378), (890, 22189)]