21259554

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{811}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 45251136

約数和(自身を除く): 23991582

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 257, 514, 771, 811, 1542, 1622, 2433, 4369, 4866, 8738, 13107, 13787, 26214, 27574, 41361, 82722, 208427, 416854, 625281, 1250562, 3543259, 7086518, 10629777, 21259554]

約数ペア:

[(1, 21259554), (2, 10629777), (3, 7086518), (6, 3543259), (17, 1250562), (34, 625281), (51, 416854), (102, 208427), (257, 82722), (514, 41361), (771, 27574), (811, 26214), (1542, 13787), (1622, 13107), (2433, 8738), (4369, 4866)]