20976045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 36381312

約数和(自身を除く): 15405267

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1913, 2193, 3655, 5739, 9565, 10965, 28695, 32521, 82259, 97563, 162605, 246777, 411295, 487815, 1233885, 1398403, 4195209, 6992015, 20976045]

約数ペア:

[(1, 20976045), (3, 6992015), (5, 4195209), (15, 1398403), (17, 1233885), (43, 487815), (51, 411295), (85, 246777), (129, 162605), (215, 97563), (255, 82259), (645, 32521), (731, 28695), (1913, 10965), (2193, 9565), (3655, 5739)]