21000620142

素因数分解:

$2^1\times 3^3\times {\mathrm{388900373}}^1$

素因数の和:388900384

約数の個数: 16

約数和(自身を含む): 46668044880

約数和(自身を除く): 25667424738

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 388900373, 777800746, 1166701119, 2333402238, 3500103357, 7000206714, 10500310071, 21000620142]

約数ペア:

[(1, 21000620142), (2, 10500310071), (3, 7000206714), (6, 3500103357), (9, 2333402238), (18, 1166701119), (27, 777800746), (54, 388900373)]