215964441

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1423}}^1$

素因数の和:1523

約数の個数: 64

約数和(自身を含む): 404643840

約数和(自身を除く): 188679399

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 73, 77, 99, 189, 219, 231, 297, 511, 657, 693, 803, 1423, 1533, 1971, 2079, 2409, 4269, 4599, 5621, 7227, 9961, 12807, 13797, 15653, 16863, 21681, 29883, 38421, 46959, 50589, 89649, 103879, 109571, 140877, 151767, 268947, 311637, 328713, 422631, 727153, 934911, 986139, 1142669, 2181459, 2804733, 2958417, 3428007, 6544377, 7998683, 10284021, 19633131, 23996049, 30852063, 71988147, 215964441]

約数ペア:

[(1, 215964441), (3, 71988147), (7, 30852063), (9, 23996049), (11, 19633131), (21, 10284021), (27, 7998683), (33, 6544377), (63, 3428007), (73, 2958417), (77, 2804733), (99, 2181459), (189, 1142669), (219, 986139), (231, 934911), (297, 727153), (511, 422631), (657, 328713), (693, 311637), (803, 268947), (1423, 151767), (1533, 140877), (1971, 109571), (2079, 103879), (2409, 89649), (4269, 50589), (4599, 46959), (5621, 38421), (7227, 29883), (9961, 21681), (12807, 16863), (13797, 15653)]