21291396

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253469}}^1$

素因数の和:253483

約数の個数: 24

約数和(自身を含む): 56777280

約数和(自身を除く): 35485884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253469, 506938, 760407, 1013876, 1520814, 1774283, 3041628, 3548566, 5322849, 7097132, 10645698, 21291396]

約数ペア:

[(1, 21291396), (2, 10645698), (3, 7097132), (4, 5322849), (6, 3548566), (7, 3041628), (12, 1774283), (14, 1520814), (21, 1013876), (28, 760407), (42, 506938), (84, 253469)]