18404965

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 24049152

約数和(自身を除く): 5644187

約数列:

[1, 5, 17, 47, 85, 235, 271, 289, 799, 1355, 1445, 3995, 4607, 12737, 13583, 23035, 63685, 67915, 78319, 216529, 391595, 1082645, 3680993, 18404965]

約数ペア:

[(1, 18404965), (5, 3680993), (17, 1082645), (47, 391595), (85, 216529), (235, 78319), (271, 67915), (289, 63685), (799, 23035), (1355, 13583), (1445, 12737), (3995, 4607)]