2215221

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 3055104

約数和(自身を除く): 839883

約数列:

[1, 3, 67, 103, 107, 201, 309, 321, 6901, 7169, 11021, 20703, 21507, 33063, 738407, 2215221]

約数ペア:

[(1, 2215221), (3, 738407), (67, 33063), (103, 21507), (107, 20703), (201, 11021), (309, 7169), (321, 6901)]