20421584

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{14341}}^1$

素因数の和:14438

約数の個数: 20

約数和(自身を含む): 40014180

約数和(自身を除く): 19592596

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 14341, 28682, 57364, 114728, 229456, 1276349, 2552698, 5105396, 10210792, 20421584]

約数ペア:

[(1, 20421584), (2, 10210792), (4, 5105396), (8, 2552698), (16, 1276349), (89, 229456), (178, 114728), (356, 57364), (712, 28682), (1424, 14341)]