21021032015

素因数分解:

$5^1\times {\mathrm{17}}^3\times {\mathrm{855731}}^1$

素因数の和:855787

約数の個数: 16

約数和(自身を含む): 26801526240

約数和(自身を除く): 5780494225

約数列:

[1, 5, 17, 85, 289, 1445, 4913, 24565, 855731, 4278655, 14547427, 72737135, 247306259, 1236531295, 4204206403, 21021032015]

約数ペア:

[(1, 21021032015), (5, 4204206403), (17, 1236531295), (85, 247306259), (289, 72737135), (1445, 14547427), (4913, 4278655), (24565, 855731)]