21000651

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24391}}^1$

素因数の和:24442

約数の個数: 16

約数和(自身を含む): 32782848

約数和(自身を除く): 11782197

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24391, 73173, 170737, 512211, 1000031, 3000093, 7000217, 21000651]

約数ペア:

[(1, 21000651), (3, 7000217), (7, 3000093), (21, 1000031), (41, 512211), (123, 170737), (287, 73173), (861, 24391)]