21491127

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4673}}^1$

素因数の和:4759

約数の個数: 24

約数和(自身を含む): 35971104

約数和(自身を除く): 14479977

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 4673, 14019, 32711, 42057, 98133, 294399, 341129, 1023387, 2387903, 3070161, 7163709, 21491127]

約数ペア:

[(1, 21491127), (3, 7163709), (7, 3070161), (9, 2387903), (21, 1023387), (63, 341129), (73, 294399), (219, 98133), (511, 42057), (657, 32711), (1533, 14019), (4599, 4673)]