16912287

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2140

約数の個数: 32

約数和(自身を含む): 29314560

約数和(自身を除く): 12402273

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2081, 2709, 6243, 8127, 14567, 18729, 43701, 56187, 89483, 131103, 268449, 393309, 626381, 805347, 1879143, 2416041, 5637429, 16912287]

約数ペア:

[(1, 16912287), (3, 5637429), (7, 2416041), (9, 1879143), (21, 805347), (27, 626381), (43, 393309), (63, 268449), (129, 131103), (189, 89483), (301, 56187), (387, 43701), (903, 18729), (1161, 14567), (2081, 8127), (2709, 6243)]