20197747118

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27974719}}^1$

素因数の和:27974759

約数の個数: 12

約数和(自身を含む): 31975104960

約数和(自身を除く): 11777357842

約数列:

[1, 2, 19, 38, 361, 722, 27974719, 55949438, 531519661, 1063039322, 10098873559, 20197747118]

約数ペア:

[(1, 20197747118), (2, 10098873559), (19, 1063039322), (38, 531519661), (361, 55949438), (722, 27974719)]