19890710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284153}}^1$

素因数の和:284167

約数の個数: 16

約数和(自身を含む): 40918176

約数和(自身を除く): 21027466

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284153, 568306, 1420765, 1989071, 2841530, 3978142, 9945355, 19890710]

約数ペア:

[(1, 19890710), (2, 9945355), (5, 3978142), (7, 2841530), (10, 1989071), (14, 1420765), (35, 568306), (70, 284153)]