687872637

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1069}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 1081641600

約数和(自身を除く): 393768963

約数列:

[1, 3, 9, 19, 53, 57, 71, 159, 171, 213, 477, 639, 1007, 1069, 1349, 3021, 3207, 3763, 4047, 9063, 9621, 11289, 12141, 20311, 33867, 56657, 60933, 71497, 75899, 169971, 182799, 214491, 227697, 509913, 643473, 683091, 1076483, 1442081, 3229449, 4022647, 4326243, 9688347, 12067941, 12978729, 36203823, 76430293, 229290879, 687872637]

約数ペア:

[(1, 687872637), (3, 229290879), (9, 76430293), (19, 36203823), (53, 12978729), (57, 12067941), (71, 9688347), (159, 4326243), (171, 4022647), (213, 3229449), (477, 1442081), (639, 1076483), (1007, 683091), (1069, 643473), (1349, 509913), (3021, 227697), (3207, 214491), (3763, 182799), (4047, 169971), (9063, 75899), (9621, 71497), (11289, 60933), (12141, 56657), (20311, 33867)]