21704590

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9733}}^1$

素因数の和:9963

約数の個数: 16

約数和(自身を含む): 39247488

約数和(自身を除く): 17542898

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9733, 19466, 48665, 97330, 2170459, 4340918, 10852295, 21704590]

約数ペア:

[(1, 21704590), (2, 10852295), (5, 4340918), (10, 2170459), (223, 97330), (446, 48665), (1115, 19466), (2230, 9733)]