21083881

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5651}}^1$

素因数の和:5712

約数の個数: 16

約数和(自身を含む): 26587008

約数和(自身を除く): 5503127

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5651, 39557, 73463, 231691, 514241, 1621837, 3011983, 21083881]

約数ペア:

[(1, 21083881), (7, 3011983), (13, 1621837), (41, 514241), (91, 231691), (287, 73463), (533, 39557), (3731, 5651)]