21668290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44221}}^1$

素因数の和:44242

約数の個数: 24

約数和(自身を含む): 45371772

約数和(自身を除く): 23703482

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44221, 88442, 221105, 309547, 442210, 619094, 1547735, 2166829, 3095470, 4333658, 10834145, 21668290]

約数ペア:

[(1, 21668290), (2, 10834145), (5, 4333658), (7, 3095470), (10, 2166829), (14, 1547735), (35, 619094), (49, 442210), (70, 309547), (98, 221105), (245, 88442), (490, 44221)]