21321349

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1289}}^1$

素因数の和:1452

約数の個数: 16

約数和(自身を含む): 26006400

約数和(自身を除く): 4685051

約数列:

[1, 7, 17, 119, 139, 973, 1289, 2363, 9023, 16541, 21913, 153391, 179171, 1254197, 3045907, 21321349]

約数ペア:

[(1, 21321349), (7, 3045907), (17, 1254197), (119, 179171), (139, 153391), (973, 21913), (1289, 16541), (2363, 9023)]