20137321

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 22118400

約数和(自身を除く): 1981079

約数列:

[1, 19, 31, 179, 191, 589, 3401, 3629, 5549, 5921, 34189, 105431, 112499, 649591, 1059859, 20137321]

約数ペア:

[(1, 20137321), (19, 1059859), (31, 649591), (179, 112499), (191, 105431), (589, 34189), (3401, 5921), (3629, 5549)]