20197838

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{487}}^1$

素因数の和:811

約数の個数: 16

約数和(自身を含む): 30831840

約数和(自身を除く): 10634002

約数列:

[1, 2, 89, 178, 233, 466, 487, 974, 20737, 41474, 43343, 86686, 113471, 226942, 10098919, 20197838]

約数ペア:

[(1, 20197838), (2, 10098919), (89, 226942), (178, 113471), (233, 86686), (466, 43343), (487, 41474), (974, 20737)]