19937931

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 30209088

約数和(自身を除く): 10271157

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 337, 481, 533, 1011, 1443, 1517, 1599, 4381, 4551, 12469, 13143, 13817, 19721, 37407, 41451, 59163, 162097, 179621, 486291, 511229, 538863, 1533687, 6645977, 19937931]

約数ペア:

[(1, 19937931), (3, 6645977), (13, 1533687), (37, 538863), (39, 511229), (41, 486291), (111, 179621), (123, 162097), (337, 59163), (481, 41451), (533, 37407), (1011, 19721), (1443, 13817), (1517, 13143), (1599, 12469), (4381, 4551)]