20001956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1823}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 37895424

約数和(自身を除く): 17893468

約数列:

[1, 2, 4, 13, 26, 52, 211, 422, 844, 1823, 2743, 3646, 5486, 7292, 10972, 23699, 47398, 94796, 384653, 769306, 1538612, 5000489, 10000978, 20001956]

約数ペア:

[(1, 20001956), (2, 10000978), (4, 5000489), (13, 1538612), (26, 769306), (52, 384653), (211, 94796), (422, 47398), (844, 23699), (1823, 10972), (2743, 7292), (3646, 5486)]