21969642961

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{2417}}^1\times {\mathrm{18289}}^1$

素因数の和:20784

約数の個数: 16

約数和(自身を含む): 25473726720

約数和(自身を除く): 3504083759

約数列:

[1, 7, 71, 497, 2417, 16919, 18289, 128023, 171607, 1201249, 1298519, 9089633, 44204513, 309431591, 3138520423, 21969642961]

約数ペア:

[(1, 21969642961), (7, 3138520423), (71, 309431591), (497, 44204513), (2417, 9089633), (16919, 1298519), (18289, 1201249), (128023, 171607)]