21091430

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4871}}^1$

素因数の和:5311

約数の個数: 16

約数和(自身を含む): 38060064

約数和(自身を除く): 16968634

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 4871, 9742, 24355, 48710, 2109143, 4218286, 10545715, 21091430]

約数ペア:

[(1, 21091430), (2, 10545715), (5, 4218286), (10, 2109143), (433, 48710), (866, 24355), (2165, 9742), (4330, 4871)]