128925513

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 198502920

約数和(自身を除く): 69577407

約数列:

[1, 3, 9, 27, 61, 81, 97, 183, 269, 291, 549, 807, 873, 1647, 2421, 2619, 4941, 5917, 7263, 7857, 16409, 17751, 21789, 26093, 49227, 53253, 78279, 147681, 159759, 234837, 443043, 479277, 704511, 1329129, 1591673, 2113533, 4775019, 14325057, 42975171, 128925513]

約数ペア:

[(1, 128925513), (3, 42975171), (9, 14325057), (27, 4775019), (61, 2113533), (81, 1591673), (97, 1329129), (183, 704511), (269, 479277), (291, 443043), (549, 234837), (807, 159759), (873, 147681), (1647, 78279), (2421, 53253), (2619, 49227), (4941, 26093), (5917, 21789), (7263, 17751), (7857, 16409)]