2688147

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 5018112

約数和(自身を除く): 2329965

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 431, 567, 693, 891, 1293, 2079, 3017, 3879, 4741, 6237, 9051, 11637, 14223, 27153, 33187, 34911, 42669, 81459, 99561, 128007, 244377, 298683, 384021, 896049, 2688147]

約数ペア:

[(1, 2688147), (3, 896049), (7, 384021), (9, 298683), (11, 244377), (21, 128007), (27, 99561), (33, 81459), (63, 42669), (77, 34911), (81, 33187), (99, 27153), (189, 14223), (231, 11637), (297, 9051), (431, 6237), (567, 4741), (693, 3879), (891, 3017), (1293, 2079)]