20551828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2371}}^1$

素因数の和:2583

約数の個数: 24

約数和(自身を含む): 39451104

約数和(自身を除く): 18899276

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2371, 4334, 4742, 8668, 9484, 26081, 52162, 104324, 467087, 934174, 1868348, 5137957, 10275914, 20551828]

約数ペア:

[(1, 20551828), (2, 10275914), (4, 5137957), (11, 1868348), (22, 934174), (44, 467087), (197, 104324), (394, 52162), (788, 26081), (2167, 9484), (2371, 8668), (4334, 4742)]