31387923

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3923}}^1$

素因数の和:4063

約数の個数: 24

約数和(自身を含む): 52236288

約数和(自身を除く): 20848365

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3923, 8001, 11769, 27461, 35307, 82383, 247149, 498221, 1494663, 3487547, 4483989, 10462641, 31387923]

約数ペア:

[(1, 31387923), (3, 10462641), (7, 4483989), (9, 3487547), (21, 1494663), (63, 498221), (127, 247149), (381, 82383), (889, 35307), (1143, 27461), (2667, 11769), (3923, 8001)]