20993455

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9833}}^1$

素因数の和:9906

約数の個数: 16

約数和(自身を含む): 29265984

約数和(自身を除く): 8272529

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9833, 49165, 68831, 344155, 599813, 2999065, 4198691, 20993455]

約数ペア:

[(1, 20993455), (5, 4198691), (7, 2999065), (35, 599813), (61, 344155), (305, 68831), (427, 49165), (2135, 9833)]