31313139

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1627

約数の個数: 32

約数和(自身を含む): 50125824

約数和(自身を除く): 18812685

約数列:

[1, 3, 11, 13, 33, 39, 47, 141, 143, 429, 517, 611, 1551, 1553, 1833, 4659, 6721, 17083, 20163, 20189, 51249, 60567, 72991, 218973, 222079, 666237, 802901, 948883, 2408703, 2846649, 10437713, 31313139]

約数ペア:

[(1, 31313139), (3, 10437713), (11, 2846649), (13, 2408703), (33, 948883), (39, 802901), (47, 666237), (141, 222079), (143, 218973), (429, 72991), (517, 60567), (611, 51249), (1551, 20189), (1553, 20163), (1833, 17083), (4659, 6721)]