20514225

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6361}}^1$

素因数の和:6417

約数の個数: 24

約数和(自身を含む): 34711072

約数和(自身を除く): 14196847

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6361, 19083, 31805, 95415, 159025, 273523, 477075, 820569, 1367615, 4102845, 6838075, 20514225]

約数ペア:

[(1, 20514225), (3, 6838075), (5, 4102845), (15, 1367615), (25, 820569), (43, 477075), (75, 273523), (129, 159025), (215, 95415), (645, 31805), (1075, 19083), (3225, 6361)]