21609296

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32941}}^1$

素因数の和:32990

約数の個数: 20

約数和(自身を含む): 42890484

約数和(自身を除く): 21281188

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32941, 65882, 131764, 263528, 527056, 1350581, 2701162, 5402324, 10804648, 21609296]

約数ペア:

[(1, 21609296), (2, 10804648), (4, 5402324), (8, 2701162), (16, 1350581), (41, 527056), (82, 263528), (164, 131764), (328, 65882), (656, 32941)]