20171902

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{1439}}^1$

素因数の和:1647

約数の個数: 16

約数和(自身を含む): 31173120

約数和(自身を除く): 11001218

約数列:

[1, 2, 43, 86, 163, 326, 1439, 2878, 7009, 14018, 61877, 123754, 234557, 469114, 10085951, 20171902]

約数ペア:

[(1, 20171902), (2, 10085951), (43, 469114), (86, 234557), (163, 123754), (326, 61877), (1439, 14018), (2878, 7009)]