21124460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150889}}^1$

素因数の和:150905

約数の個数: 24

約数和(自身を含む): 50699040

約数和(自身を除く): 29574580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150889, 301778, 603556, 754445, 1056223, 1508890, 2112446, 3017780, 4224892, 5281115, 10562230, 21124460]

約数ペア:

[(1, 21124460), (2, 10562230), (4, 5281115), (5, 4224892), (7, 3017780), (10, 2112446), (14, 1508890), (20, 1056223), (28, 754445), (35, 603556), (70, 301778), (140, 150889)]