20621636

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4691}}^1$

素因数の和:4859

約数の個数: 24

約数和(自身を含む): 41514816

約数和(自身を除く): 20893180

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 4691, 9382, 18764, 32837, 65674, 131348, 736487, 1472974, 2945948, 5155409, 10310818, 20621636]

約数ペア:

[(1, 20621636), (2, 10310818), (4, 5155409), (7, 2945948), (14, 1472974), (28, 736487), (157, 131348), (314, 65674), (628, 32837), (1099, 18764), (2198, 9382), (4396, 4691)]