859645857

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{70457}}^1$

素因数の和:70557

約数の個数: 24

約数和(自身を含む): 1349411616

約数和(自身を除く): 489765759

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1743, 4067, 12201, 70457, 211371, 493199, 1479597, 3452393, 5847931, 10357179, 17543793, 40935517, 122806551, 286548619, 859645857]

約数ペア:

[(1, 859645857), (3, 286548619), (7, 122806551), (21, 40935517), (49, 17543793), (83, 10357179), (147, 5847931), (249, 3452393), (581, 1479597), (1743, 493199), (4067, 211371), (12201, 70457)]