128420649

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{14879}}^1$

素因数の和:15029

約数の個数: 24

約数和(自身を含む): 213557760

約数和(自身を除く): 85137111

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 8631, 14879, 44637, 104153, 133911, 312459, 937377, 2038423, 6115269, 14268961, 18345807, 42806883, 128420649]

約数ペア:

[(1, 128420649), (3, 42806883), (7, 18345807), (9, 14268961), (21, 6115269), (63, 2038423), (137, 937377), (411, 312459), (959, 133911), (1233, 104153), (2877, 44637), (8631, 14879)]