28657995

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 47384832

約数和(自身を除く): 18726837

約数列:

[1, 3, 5, 15, 43, 129, 157, 215, 283, 471, 645, 785, 849, 1415, 2355, 4245, 6751, 12169, 20253, 33755, 36507, 44431, 60845, 101265, 133293, 182535, 222155, 666465, 1910533, 5731599, 9552665, 28657995]

約数ペア:

[(1, 28657995), (3, 9552665), (5, 5731599), (15, 1910533), (43, 666465), (129, 222155), (157, 182535), (215, 133293), (283, 101265), (471, 60845), (645, 44431), (785, 36507), (849, 33755), (1415, 20253), (2355, 12169), (4245, 6751)]