20197740521

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{261761}}^1$

素因数の和:261992

約数の個数: 16

約数和(自身を含む): 23554391808

約数和(自身を除く): 3356651287

約数列:

[1, 7, 73, 151, 511, 1057, 11023, 77161, 261761, 1832327, 19108553, 39525911, 133759871, 276681377, 2885391503, 20197740521]

約数ペア:

[(1, 20197740521), (7, 2885391503), (73, 276681377), (151, 133759871), (511, 39525911), (1057, 19108553), (11023, 1832327), (77161, 261761)]