2780421

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4271}}^1$

素因数の和:4312

約数の個数: 16

約数和(自身を含む): 4374528

約数和(自身を除く): 1594107

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 4271, 12813, 29897, 89691, 132401, 397203, 926807, 2780421]

約数ペア:

[(1, 2780421), (3, 926807), (7, 397203), (21, 132401), (31, 89691), (93, 29897), (217, 12813), (651, 4271)]