81210297

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 132378624

約数和(自身を除く): 51168327

約数列:

[1, 3, 7, 21, 31, 49, 71, 93, 147, 213, 217, 251, 497, 651, 753, 1491, 1519, 1757, 2201, 3479, 4557, 5271, 6603, 7781, 10437, 12299, 15407, 17821, 23343, 36897, 46221, 53463, 54467, 107849, 124747, 163401, 323547, 374241, 381269, 552451, 873229, 1143807, 1657353, 2619687, 3867157, 11601471, 27070099, 81210297]

約数ペア:

[(1, 81210297), (3, 27070099), (7, 11601471), (21, 3867157), (31, 2619687), (49, 1657353), (71, 1143807), (93, 873229), (147, 552451), (213, 381269), (217, 374241), (251, 323547), (497, 163401), (651, 124747), (753, 107849), (1491, 54467), (1519, 53463), (1757, 46221), (2201, 36897), (3479, 23343), (4557, 17821), (5271, 15407), (6603, 12299), (7781, 10437)]