21249411

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{1399}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 29164800

約数和(自身を除く): 7915389

約数列:

[1, 3, 61, 83, 183, 249, 1399, 4197, 5063, 15189, 85339, 116117, 256017, 348351, 7083137, 21249411]

約数ペア:

[(1, 21249411), (3, 7083137), (61, 348351), (83, 256017), (183, 116117), (249, 85339), (1399, 15189), (4197, 5063)]