21017704

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37003}}^1$

素因数の和:37080

約数の個数: 16

約数和(自身を含む): 39964320

約数和(自身を除く): 18946616

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37003, 74006, 148012, 296024, 2627213, 5254426, 10508852, 21017704]

約数ペア:

[(1, 21017704), (2, 10508852), (4, 5254426), (8, 2627213), (71, 296024), (142, 148012), (284, 74006), (568, 37003)]