21238751

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 23362560

約数和(自身を除く): 2123809

約数列:

[1, 19, 31, 107, 337, 589, 2033, 3317, 6403, 10447, 36059, 63023, 198493, 685121, 1117829, 21238751]

約数ペア:

[(1, 21238751), (19, 1117829), (31, 685121), (107, 198493), (337, 63023), (589, 36059), (2033, 10447), (3317, 6403)]