21000261821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3452287}}^1$

素因数の和:3452384

約数の個数: 16

約数和(自身を含む): 26513571840

約数和(自身を除く): 5513310019

約数列:

[1, 7, 11, 77, 79, 553, 869, 6083, 3452287, 24166009, 37975157, 265826099, 272730673, 1909114711, 3000037403, 21000261821]

約数ペア:

[(1, 21000261821), (7, 3000037403), (11, 1909114711), (77, 272730673), (79, 265826099), (553, 37975157), (869, 24166009), (6083, 3452287)]