21139937245

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8507017}}^1$

素因数の和:8507100

約数の個数: 16

約数和(自身を含む): 29400254208

約数和(自身を除く): 8260316963

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8507017, 42535085, 59549119, 297745595, 603998207, 3019991035, 4227987449, 21139937245]

約数ペア:

[(1, 21139937245), (5, 4227987449), (7, 3019991035), (35, 603998207), (71, 297745595), (355, 59549119), (497, 42535085), (2485, 8507017)]