21328387

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 2051453

約数列:

[1, 17, 43, 163, 179, 731, 2771, 3043, 7009, 7697, 29177, 119153, 130849, 496009, 1254611, 21328387]

約数ペア:

[(1, 21328387), (17, 1254611), (43, 496009), (163, 130849), (179, 119153), (731, 29177), (2771, 7697), (3043, 7009)]