21134555480

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1038043}}^1$

素因数の和:1038563

約数の個数: 32

約数和(自身を含む): 47646219600

約数和(自身を除く): 26511664120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 1038043, 2076086, 4152172, 5190215, 8304344, 10380430, 20760860, 41521720, 528363887, 1056727774, 2113455548, 2641819435, 4226911096, 5283638870, 10567277740, 21134555480]

約数ペア:

[(1, 21134555480), (2, 10567277740), (4, 5283638870), (5, 4226911096), (8, 2641819435), (10, 2113455548), (20, 1056727774), (40, 528363887), (509, 41521720), (1018, 20760860), (2036, 10380430), (2545, 8304344), (4072, 5190215), (5090, 4152172), (10180, 2076086), (20360, 1038043)]