21339200

素因数分解:

$2^6\times 5^2\times {\mathrm{13337}}^1$

素因数の和:13359

約数の個数: 42

約数和(自身を含む): 52511706

約数和(自身を除く): 31172506

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13337, 26674, 53348, 66685, 106696, 133370, 213392, 266740, 333425, 426784, 533480, 666850, 853568, 1066960, 1333700, 2133920, 2667400, 4267840, 5334800, 10669600, 21339200]

約数ペア:

[(1, 21339200), (2, 10669600), (4, 5334800), (5, 4267840), (8, 2667400), (10, 2133920), (16, 1333700), (20, 1066960), (25, 853568), (32, 666850), (40, 533480), (50, 426784), (64, 333425), (80, 266740), (100, 213392), (160, 133370), (200, 106696), (320, 66685), (400, 53348), (800, 26674), (1600, 13337)]