21980104

素因数分解:

$2^3\times {\mathrm{853}}^1\times {\mathrm{3221}}^1$

素因数の和:4080

約数の個数: 16

約数和(自身を含む): 41273820

約数和(自身を除く): 19293716

約数列:

[1, 2, 4, 8, 853, 1706, 3221, 3412, 6442, 6824, 12884, 25768, 2747513, 5495026, 10990052, 21980104]

約数ペア:

[(1, 21980104), (2, 10990052), (4, 5495026), (8, 2747513), (853, 25768), (1706, 12884), (3221, 6824), (3412, 6442)]