20657947

素因数分解:

${\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:306

約数の個数: 16

約数和(自身を含む): 22118400

約数和(自身を除く): 1460453

約数列:

[1, 29, 71, 79, 127, 2059, 2291, 3683, 5609, 9017, 10033, 162661, 261493, 290957, 712343, 20657947]

約数ペア:

[(1, 20657947), (29, 712343), (71, 290957), (79, 261493), (127, 162661), (2059, 10033), (2291, 9017), (3683, 5609)]