20939210

素因数分解:

$2^1\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{1607}}^1$

素因数の和:2917

約数の個数: 16

約数和(自身を含む): 37742976

約数和(自身を除く): 16803766

約数列:

[1, 2, 5, 10, 1303, 1607, 2606, 3214, 6515, 8035, 13030, 16070, 2093921, 4187842, 10469605, 20939210]

約数ペア:

[(1, 20939210), (2, 10469605), (5, 4187842), (10, 2093921), (1303, 16070), (1607, 13030), (2606, 8035), (3214, 6515)]