21029144

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{6427}}^1$

素因数の和:6842

約数の個数: 16

約数和(自身を含む): 39532200

約数和(自身を除く): 18503056

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 6427, 12854, 25708, 51416, 2628643, 5257286, 10514572, 21029144]

約数ペア:

[(1, 21029144), (2, 10514572), (4, 5257286), (8, 2628643), (409, 51416), (818, 25708), (1636, 12854), (3272, 6427)]