31661847

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2939}}^1$

素因数の和:2977

約数の個数: 40

約数和(自身を含む): 56918400

約数和(自身を除く): 25256553

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2939, 3591, 8817, 10773, 20573, 26451, 55841, 61719, 79353, 167523, 185157, 238059, 390887, 502569, 555471, 1172661, 1507707, 1666413, 3517983, 4523121, 10553949, 31661847]

約数ペア:

[(1, 31661847), (3, 10553949), (7, 4523121), (9, 3517983), (19, 1666413), (21, 1507707), (27, 1172661), (57, 555471), (63, 502569), (81, 390887), (133, 238059), (171, 185157), (189, 167523), (399, 79353), (513, 61719), (567, 55841), (1197, 26451), (1539, 20573), (2939, 10773), (3591, 8817)]