20813898

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{495569}}^1$

素因数の和:495581

約数の個数: 16

約数和(自身を含む): 47574720

約数和(自身を除く): 26760822

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 495569, 991138, 1486707, 2973414, 3468983, 6937966, 10406949, 20813898]

約数ペア:

[(1, 20813898), (2, 10406949), (3, 6937966), (6, 3468983), (7, 2973414), (14, 1486707), (21, 991138), (42, 495569)]