21235718

素因数分解:

$2^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{643}}^1$

素因数の和:996

約数の個数: 24

約数和(自身を含む): 37221912

約数和(自身を除く): 15986194

約数列:

[1, 2, 7, 14, 49, 98, 337, 643, 674, 1286, 2359, 4501, 4718, 9002, 16513, 31507, 33026, 63014, 216691, 433382, 1516837, 3033674, 10617859, 21235718]

約数ペア:

[(1, 21235718), (2, 10617859), (7, 3033674), (14, 1516837), (49, 433382), (98, 216691), (337, 63014), (643, 33026), (674, 31507), (1286, 16513), (2359, 9002), (4501, 4718)]