21000390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1847}}^1$

素因数の和:2236

約数の個数: 32

約数和(自身を含む): 50561280

約数和(自身を除く): 29560890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 379, 758, 1137, 1847, 1895, 2274, 3694, 3790, 5541, 5685, 9235, 11082, 11370, 18470, 27705, 55410, 700013, 1400026, 2100039, 3500065, 4200078, 7000130, 10500195, 21000390]

約数ペア:

[(1, 21000390), (2, 10500195), (3, 7000130), (5, 4200078), (6, 3500065), (10, 2100039), (15, 1400026), (30, 700013), (379, 55410), (758, 27705), (1137, 18470), (1847, 11370), (1895, 11082), (2274, 9235), (3694, 5685), (3790, 5541)]