21025730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191143}}^1$

素因数の和:191161

約数の個数: 16

約数和(自身を含む): 41287104

約数和(自身を除く): 20261374

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191143, 382286, 955715, 1911430, 2102573, 4205146, 10512865, 21025730]

約数ペア:

[(1, 21025730), (2, 10512865), (5, 4205146), (10, 2102573), (11, 1911430), (22, 955715), (55, 382286), (110, 191143)]