21282440

素因数分解:

$2^3\times 5^1\times {\mathrm{532061}}^1$

素因数の和:532072

約数の個数: 16

約数和(自身を含む): 47885580

約数和(自身を除く): 26603140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 532061, 1064122, 2128244, 2660305, 4256488, 5320610, 10641220, 21282440]

約数ペア:

[(1, 21282440), (2, 10641220), (4, 5320610), (5, 4256488), (8, 2660305), (10, 2128244), (20, 1064122), (40, 532061)]