19963876

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 36368640

約数和(自身を除く): 16404764

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1229, 2458, 4061, 4916, 8122, 16244, 38099, 76198, 152396, 160999, 321998, 643996, 4990969, 9981938, 19963876]

約数ペア:

[(1, 19963876), (2, 9981938), (4, 4990969), (31, 643996), (62, 321998), (124, 160999), (131, 152396), (262, 76198), (524, 38099), (1229, 16244), (2458, 8122), (4061, 4916)]