21058323

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 12229869

約数列:

[1, 3, 11, 13, 33, 39, 143, 191, 257, 429, 573, 771, 2101, 2483, 2827, 3341, 6303, 7449, 8481, 10023, 27313, 36751, 49087, 81939, 110253, 147261, 539957, 638131, 1619871, 1914393, 7019441, 21058323]

約数ペア:

[(1, 21058323), (3, 7019441), (11, 1914393), (13, 1619871), (33, 638131), (39, 539957), (143, 147261), (191, 110253), (257, 81939), (429, 49087), (573, 36751), (771, 27313), (2101, 10023), (2483, 8481), (2827, 7449), (3341, 6303)]