21494193

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2003}}^1$

素因数の和:2093

約数の個数: 24

約数和(自身を含む): 33811488

約数和(自身を除く): 12317295

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 2003, 3577, 6009, 10731, 14021, 42063, 98147, 146219, 294441, 438657, 1023533, 3070599, 7164731, 21494193]

約数ペア:

[(1, 21494193), (3, 7164731), (7, 3070599), (21, 1023533), (49, 438657), (73, 294441), (147, 146219), (219, 98147), (511, 42063), (1533, 14021), (2003, 10731), (3577, 6009)]