28495779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 42674688

約数和(自身を除く): 14178909

約数列:

[1, 3, 13, 39, 41, 71, 123, 213, 251, 533, 753, 923, 1599, 2769, 2911, 3263, 8733, 9789, 10291, 17821, 30873, 37843, 53463, 113529, 133783, 231673, 401349, 695019, 730661, 2191983, 9498593, 28495779]

約数ペア:

[(1, 28495779), (3, 9498593), (13, 2191983), (39, 730661), (41, 695019), (71, 401349), (123, 231673), (213, 133783), (251, 113529), (533, 53463), (753, 37843), (923, 30873), (1599, 17821), (2769, 10291), (2911, 9789), (3263, 8733)]