199947741

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{929}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 314384640

約数和(自身を除く): 114436899

約数列:

[1, 3, 7, 21, 37, 111, 259, 277, 777, 831, 929, 1939, 2787, 5817, 6503, 10249, 19509, 30747, 34373, 71743, 103119, 215229, 240611, 257333, 721833, 771999, 1801331, 5403993, 9521321, 28563963, 66649247, 199947741]

約数ペア:

[(1, 199947741), (3, 66649247), (7, 28563963), (21, 9521321), (37, 5403993), (111, 1801331), (259, 771999), (277, 721833), (777, 257333), (831, 240611), (929, 215229), (1939, 103119), (2787, 71743), (5817, 34373), (6503, 30747), (10249, 19509)]