21065770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191507}}^1$

素因数の和:191525

約数の個数: 16

約数和(自身を含む): 41365728

約数和(自身を除く): 20299958

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191507, 383014, 957535, 1915070, 2106577, 4213154, 10532885, 21065770]

約数ペア:

[(1, 21065770), (2, 10532885), (5, 4213154), (10, 2106577), (11, 1915070), (22, 957535), (55, 383014), (110, 191507)]