21128538

素因数分解:

$2^1\times 3^1\times {\mathrm{1259}}^1\times {\mathrm{2797}}^1$

素因数の和:4061

約数の個数: 16

約数和(自身を含む): 42305760

約数和(自身を除く): 21177222

約数列:

[1, 2, 3, 6, 1259, 2518, 2797, 3777, 5594, 7554, 8391, 16782, 3521423, 7042846, 10564269, 21128538]

約数ペア:

[(1, 21128538), (2, 10564269), (3, 7042846), (6, 3521423), (1259, 16782), (2518, 8391), (2797, 7554), (3777, 5594)]