28344407

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 8233897

約数列:

[1, 7, 13, 41, 71, 91, 107, 287, 497, 533, 749, 923, 1391, 2911, 3731, 4387, 6461, 7597, 9737, 20377, 30709, 37843, 53179, 57031, 98761, 264901, 311477, 399217, 691327, 2180339, 4049201, 28344407]

約数ペア:

[(1, 28344407), (7, 4049201), (13, 2180339), (41, 691327), (71, 399217), (91, 311477), (107, 264901), (287, 98761), (497, 57031), (533, 53179), (749, 37843), (923, 30709), (1391, 20377), (2911, 9737), (3731, 7597), (4387, 6461)]