20686743

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29851}}^1$

素因数の和:29875

約数の個数: 24

約数和(自身を含む): 37255296

約数和(自身を除く): 16568553

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 29851, 89553, 208957, 268659, 328361, 626871, 985083, 1880613, 2298527, 2955249, 6895581, 20686743]

約数ペア:

[(1, 20686743), (3, 6895581), (7, 2955249), (9, 2298527), (11, 1880613), (21, 985083), (33, 626871), (63, 328361), (77, 268659), (99, 208957), (231, 89553), (693, 29851)]