21338380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152417}}^1$

素因数の和:152433

約数の個数: 24

約数和(自身を含む): 51212448

約数和(自身を除く): 29874068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152417, 304834, 609668, 762085, 1066919, 1524170, 2133838, 3048340, 4267676, 5334595, 10669190, 21338380]

約数ペア:

[(1, 21338380), (2, 10669190), (4, 5334595), (5, 4267676), (7, 3048340), (10, 2133838), (14, 1524170), (20, 1066919), (28, 762085), (35, 609668), (70, 304834), (140, 152417)]