20973278

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1\times {\mathrm{557}}^1$

素因数の和:907

約数の個数: 16

約数和(自身を含む): 32100624

約数和(自身を除く): 11127346

約数列:

[1, 2, 67, 134, 281, 557, 562, 1114, 18827, 37319, 37654, 74638, 156517, 313034, 10486639, 20973278]

約数ペア:

[(1, 20973278), (2, 10486639), (67, 313034), (134, 156517), (281, 74638), (557, 37654), (562, 37319), (1114, 18827)]