257439

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:87

約数の個数: 32

約数和(自身を含む): 451584

約数和(自身を除く): 194145

約数列:

[1, 3, 7, 13, 21, 23, 39, 41, 69, 91, 123, 161, 273, 287, 299, 483, 533, 861, 897, 943, 1599, 2093, 2829, 3731, 6279, 6601, 11193, 12259, 19803, 36777, 85813, 257439]

約数ペア:

[(1, 257439), (3, 85813), (7, 36777), (13, 19803), (21, 12259), (23, 11193), (39, 6601), (41, 6279), (69, 3731), (91, 2829), (123, 2093), (161, 1599), (273, 943), (287, 897), (299, 861), (483, 533)]