20897660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149269}}^1$

素因数の和:149285

約数の個数: 24

約数和(自身を含む): 50154720

約数和(自身を除く): 29257060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149269, 298538, 597076, 746345, 1044883, 1492690, 2089766, 2985380, 4179532, 5224415, 10448830, 20897660]

約数ペア:

[(1, 20897660), (2, 10448830), (4, 5224415), (5, 4179532), (7, 2985380), (10, 2089766), (14, 1492690), (20, 1044883), (28, 746345), (35, 597076), (70, 298538), (140, 149269)]