21093590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{557}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 43550784

約数和(自身を除く): 22457194

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 541, 557, 1082, 1114, 2705, 2785, 3787, 3899, 5410, 5570, 7574, 7798, 18935, 19495, 37870, 38990, 301337, 602674, 1506685, 2109359, 3013370, 4218718, 10546795, 21093590]

約数ペア:

[(1, 21093590), (2, 10546795), (5, 4218718), (7, 3013370), (10, 2109359), (14, 1506685), (35, 602674), (70, 301337), (541, 38990), (557, 37870), (1082, 19495), (1114, 18935), (2705, 7798), (2785, 7574), (3787, 5570), (3899, 5410)]