128858691

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{739}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 196922880

約数和(自身を除く): 68064189

約数列:

[1, 3, 13, 17, 39, 51, 221, 263, 663, 739, 789, 2217, 3419, 4471, 9607, 10257, 12563, 13413, 28821, 37689, 58123, 163319, 174369, 194357, 489957, 583071, 2526641, 3304069, 7579923, 9912207, 42952897, 128858691]

約数ペア:

[(1, 128858691), (3, 42952897), (13, 9912207), (17, 7579923), (39, 3304069), (51, 2526641), (221, 583071), (263, 489957), (663, 194357), (739, 174369), (789, 163319), (2217, 58123), (3419, 37689), (4471, 28821), (9607, 13413), (10257, 12563)]