15989211

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2776

約数の個数: 32

約数和(自身を含む): 27955200

約数和(自身を除く): 11965989

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 2729, 5859, 8187, 19103, 24561, 57309, 73683, 84599, 171927, 253797, 515781, 592193, 761391, 1776579, 2284173, 5329737, 15989211]

約数ペア:

[(1, 15989211), (3, 5329737), (7, 2284173), (9, 1776579), (21, 761391), (27, 592193), (31, 515781), (63, 253797), (93, 171927), (189, 84599), (217, 73683), (279, 57309), (651, 24561), (837, 19103), (1953, 8187), (2729, 5859)]