21042860

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9311}}^1$

素因数の和:9433

約数の個数: 24

約数和(自身を含む): 44585856

約数和(自身を除く): 23542996

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9311, 18622, 37244, 46555, 93110, 186220, 1052143, 2104286, 4208572, 5260715, 10521430, 21042860]

約数ペア:

[(1, 21042860), (2, 10521430), (4, 5260715), (5, 4208572), (10, 2104286), (20, 1052143), (113, 186220), (226, 93110), (452, 46555), (565, 37244), (1130, 18622), (2260, 9311)]