81441867

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 126118944

約数和(自身を除く): 44677077

約数列:

[1, 3, 13, 31, 39, 41, 53, 93, 123, 159, 403, 533, 689, 961, 1209, 1271, 1599, 1643, 2067, 2173, 2883, 3813, 4929, 6519, 12493, 16523, 21359, 28249, 37479, 39401, 49569, 50933, 64077, 67363, 84747, 118203, 152799, 202089, 512213, 662129, 875719, 1536639, 1986387, 2088253, 2627157, 6264759, 27147289, 81441867]

約数ペア:

[(1, 81441867), (3, 27147289), (13, 6264759), (31, 2627157), (39, 2088253), (41, 1986387), (53, 1536639), (93, 875719), (123, 662129), (159, 512213), (403, 202089), (533, 152799), (689, 118203), (961, 84747), (1209, 67363), (1271, 64077), (1599, 50933), (1643, 49569), (2067, 39401), (2173, 37479), (2883, 28249), (3813, 21359), (4929, 16523), (6519, 12493)]