81980067

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{4993}}^1$

素因数の和:5430

約数の個数: 16

約数和(自身を含む): 118018208

約数和(自身を除く): 36038141

約数列:

[1, 3, 13, 39, 421, 1263, 4993, 5473, 14979, 16419, 64909, 194727, 2102053, 6306159, 27326689, 81980067]

約数ペア:

[(1, 81980067), (3, 27326689), (13, 6306159), (39, 2102053), (421, 194727), (1263, 64909), (4993, 16419), (5473, 14979)]