289486587

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1607}}^1$

素因数の和:1803

約数の個数: 32

約数和(自身を含む): 432230400

約数和(自身を除く): 142743813

約数列:

[1, 3, 13, 31, 39, 93, 149, 403, 447, 1209, 1607, 1937, 4619, 4821, 5811, 13857, 20891, 49817, 60047, 62673, 149451, 180141, 239443, 647621, 718329, 1942863, 3112759, 7422733, 9338277, 22268199, 96495529, 289486587]

約数ペア:

[(1, 289486587), (3, 96495529), (13, 22268199), (31, 9338277), (39, 7422733), (93, 3112759), (149, 1942863), (403, 718329), (447, 647621), (1209, 239443), (1607, 180141), (1937, 149451), (4619, 62673), (4821, 60047), (5811, 49817), (13857, 20891)]