20573007

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{421}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 34030080

約数和(自身を除く): 13457073

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 421, 537, 1253, 1263, 2327, 2947, 3759, 5473, 6981, 8841, 16289, 16419, 38311, 48867, 75359, 114933, 226077, 527513, 979667, 1582539, 2939001, 6857669, 20573007]

約数ペア:

[(1, 20573007), (3, 6857669), (7, 2939001), (13, 1582539), (21, 979667), (39, 527513), (91, 226077), (179, 114933), (273, 75359), (421, 48867), (537, 38311), (1253, 16419), (1263, 16289), (2327, 8841), (2947, 6981), (3759, 5473)]