19400395

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 27841536

約数和(自身を除く): 8441141

約数列:

[1, 5, 7, 35, 37, 71, 185, 211, 259, 355, 497, 1055, 1295, 1477, 2485, 2627, 7385, 7807, 13135, 14981, 18389, 39035, 54649, 74905, 91945, 104867, 273245, 524335, 554297, 2771485, 3880079, 19400395]

約数ペア:

[(1, 19400395), (5, 3880079), (7, 2771485), (35, 554297), (37, 524335), (71, 273245), (185, 104867), (211, 91945), (259, 74905), (355, 54649), (497, 39035), (1055, 18389), (1295, 14981), (1477, 13135), (2485, 7807), (2627, 7385)]