28181601

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2203

約数の個数: 40

約数和(自身を含む): 50227584

約数和(自身を除く): 22045983

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 2161, 4347, 6483, 13041, 15127, 19449, 45381, 49703, 58347, 136143, 149109, 175041, 347921, 408429, 447327, 1043763, 1225287, 1341981, 3131289, 4025943, 9393867, 28181601]

約数ペア:

[(1, 28181601), (3, 9393867), (7, 4025943), (9, 3131289), (21, 1341981), (23, 1225287), (27, 1043763), (63, 447327), (69, 408429), (81, 347921), (161, 175041), (189, 149109), (207, 136143), (483, 58347), (567, 49703), (621, 45381), (1449, 19449), (1863, 15127), (2161, 13041), (4347, 6483)]