20581533

素因数分解:

$3^4\times 7^1\times {\mathrm{36299}}^1$

素因数の和:36318

約数の個数: 20

約数和(自身を含む): 35138400

約数和(自身を除く): 14556867

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36299, 108897, 254093, 326691, 762279, 980073, 2286837, 2940219, 6860511, 20581533]

約数ペア:

[(1, 20581533), (3, 6860511), (7, 2940219), (9, 2286837), (21, 980073), (27, 762279), (63, 326691), (81, 254093), (189, 108897), (567, 36299)]