21054104

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{6563}}^1$

素因数の和:6970

約数の個数: 16

約数和(自身を含む): 39580920

約数和(自身を除く): 18526816

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 6563, 13126, 26252, 52504, 2631763, 5263526, 10527052, 21054104]

約数ペア:

[(1, 21054104), (2, 10527052), (4, 5263526), (8, 2631763), (401, 52504), (802, 26252), (1604, 13126), (3208, 6563)]