51818949

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 96225792

約数和(自身を除く): 44406843

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 63, 91, 93, 117, 157, 169, 217, 273, 279, 403, 471, 507, 651, 819, 1099, 1183, 1209, 1413, 1521, 1953, 2041, 2821, 3297, 3549, 3627, 4867, 5239, 6123, 8463, 9891, 10647, 14287, 14601, 15717, 18369, 25389, 26533, 34069, 36673, 42861, 43803, 47151, 63271, 79599, 102207, 110019, 128583, 185731, 189813, 238797, 306621, 330057, 442897, 557193, 569439, 822523, 1328691, 1671579, 2467569, 3986073, 5757661, 7402707, 17272983, 51818949]

約数ペア:

[(1, 51818949), (3, 17272983), (7, 7402707), (9, 5757661), (13, 3986073), (21, 2467569), (31, 1671579), (39, 1328691), (63, 822523), (91, 569439), (93, 557193), (117, 442897), (157, 330057), (169, 306621), (217, 238797), (273, 189813), (279, 185731), (403, 128583), (471, 110019), (507, 102207), (651, 79599), (819, 63271), (1099, 47151), (1183, 43803), (1209, 42861), (1413, 36673), (1521, 34069), (1953, 26533), (2041, 25389), (2821, 18369), (3297, 15717), (3549, 14601), (3627, 14287), (4867, 10647), (5239, 9891), (6123, 8463)]