21031888593

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{1487}}^1\times {\mathrm{66403}}^1$

素因数の和:67964

約数の個数: 16

約数和(自身を含む): 28457035776

約数和(自身を除く): 7425147183

約数列:

[1, 3, 71, 213, 1487, 4461, 66403, 105577, 199209, 316731, 4714613, 14143839, 98741261, 296223783, 7010629531, 21031888593]

約数ペア:

[(1, 21031888593), (3, 7010629531), (71, 296223783), (213, 98741261), (1487, 14143839), (4461, 4714613), (66403, 316731), (105577, 199209)]