18945585

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9791}}^1$

素因数の和:9845

約数の個数: 24

約数和(自身を含む): 33606144

約数和(自身を除く): 14660559

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9791, 29373, 48955, 88119, 146865, 421013, 440595, 1263039, 2105065, 3789117, 6315195, 18945585]

約数ペア:

[(1, 18945585), (3, 6315195), (5, 3789117), (9, 2105065), (15, 1263039), (43, 440595), (45, 421013), (129, 146865), (215, 88119), (387, 48955), (645, 29373), (1935, 9791)]