21169899

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 31685472

約数和(自身を除く): 10515573

約数列:

[1, 3, 9, 41, 103, 123, 309, 369, 557, 927, 1671, 4223, 5013, 12669, 22837, 38007, 57371, 68511, 172113, 205533, 516339, 2352211, 7056633, 21169899]

約数ペア:

[(1, 21169899), (3, 7056633), (9, 2352211), (41, 516339), (103, 205533), (123, 172113), (309, 68511), (369, 57371), (557, 38007), (927, 22837), (1671, 12669), (4223, 5013)]