21592845

素因数分解:

$3^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{521}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 38586240

約数和(自身を除く): 16993395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 307, 521, 921, 1535, 1563, 2605, 2763, 4605, 4689, 7815, 8289, 13815, 14067, 23445, 41445, 70335, 159947, 479841, 799735, 1439523, 2399205, 4318569, 7197615, 21592845]

約数ペア:

[(1, 21592845), (3, 7197615), (5, 4318569), (9, 2399205), (15, 1439523), (27, 799735), (45, 479841), (135, 159947), (307, 70335), (521, 41445), (921, 23445), (1535, 14067), (1563, 13815), (2605, 8289), (2763, 7815), (4605, 4689)]