31221099

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 57953280

約数和(自身を除く): 26732181

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 97, 117, 131, 189, 273, 291, 351, 393, 679, 819, 873, 917, 1179, 1261, 1703, 2037, 2457, 2619, 2751, 3537, 3783, 5109, 6111, 8253, 8827, 11349, 11921, 12707, 15327, 18333, 24759, 26481, 34047, 35763, 38121, 45981, 79443, 88949, 107289, 114363, 165191, 238329, 266847, 321867, 343089, 495573, 800541, 1156337, 1486719, 2401623, 3469011, 4460157, 10407033, 31221099]

約数ペア:

[(1, 31221099), (3, 10407033), (7, 4460157), (9, 3469011), (13, 2401623), (21, 1486719), (27, 1156337), (39, 800541), (63, 495573), (91, 343089), (97, 321867), (117, 266847), (131, 238329), (189, 165191), (273, 114363), (291, 107289), (351, 88949), (393, 79443), (679, 45981), (819, 38121), (873, 35763), (917, 34047), (1179, 26481), (1261, 24759), (1703, 18333), (2037, 15327), (2457, 12707), (2619, 11921), (2751, 11349), (3537, 8827), (3783, 8253), (5109, 6111)]