28281964

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 50951376

約数和(自身を除く): 22669412

約数列:

[1, 2, 4, 41, 82, 164, 331, 521, 662, 1042, 1324, 2084, 13571, 21361, 27142, 42722, 54284, 85444, 172451, 344902, 689804, 7070491, 14140982, 28281964]

約数ペア:

[(1, 28281964), (2, 14140982), (4, 7070491), (41, 689804), (82, 344902), (164, 172451), (331, 85444), (521, 54284), (662, 42722), (1042, 27142), (1324, 21361), (2084, 13571)]