215985231

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103889}}^1$

素因数の和:103916

約数の個数: 32

約数和(自身を含む): 398937600

約数和(自身を除く): 182952369

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 103889, 311667, 727223, 935001, 1142779, 2181669, 2805003, 3428337, 6545007, 7999453, 10285011, 19635021, 23998359, 30855033, 71995077, 215985231]

約数ペア:

[(1, 215985231), (3, 71995077), (7, 30855033), (9, 23998359), (11, 19635021), (21, 10285011), (27, 7999453), (33, 6545007), (63, 3428337), (77, 2805003), (99, 2181669), (189, 1142779), (231, 935001), (297, 727223), (693, 311667), (2079, 103889)]