2100000021

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5882353}}^1$

素因数の和:5882380

約数の個数: 16

約数和(自身を含む): 3388235904

約数和(自身を除く): 1288235883

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 5882353, 17647059, 41176471, 100000001, 123529413, 300000003, 700000007, 2100000021]

約数ペア:

[(1, 2100000021), (3, 700000007), (7, 300000003), (17, 123529413), (21, 100000001), (51, 41176471), (119, 17647059), (357, 5882353)]