21254536

素因数分解:

$2^3\times {\mathrm{1303}}^1\times {\mathrm{2039}}^1$

素因数の和:3348

約数の個数: 16

約数和(自身を含む): 39902400

約数和(自身を除く): 18647864

約数列:

[1, 2, 4, 8, 1303, 2039, 2606, 4078, 5212, 8156, 10424, 16312, 2656817, 5313634, 10627268, 21254536]

約数ペア:

[(1, 21254536), (2, 10627268), (4, 5313634), (8, 2656817), (1303, 16312), (2039, 10424), (2606, 8156), (4078, 5212)]