388307521

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1\times {\mathrm{2999}}^1$

素因数の和:3408

約数の個数: 16

約数和(自身を含む): 453600000

約数和(自身を除く): 65292479

約数列:

[1, 7, 53, 349, 371, 2443, 2999, 18497, 20993, 129479, 158947, 1046651, 1112629, 7326557, 55472503, 388307521]

約数ペア:

[(1, 388307521), (7, 55472503), (53, 7326557), (349, 1112629), (371, 1046651), (2443, 158947), (2999, 129479), (18497, 20993)]