21039099

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2351}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 29729280

約数和(自身を除く): 8690181

約数列:

[1, 3, 19, 57, 157, 471, 2351, 2983, 7053, 8949, 44669, 134007, 369107, 1107321, 7013033, 21039099]

約数ペア:

[(1, 21039099), (3, 7013033), (19, 1107321), (57, 369107), (157, 134007), (471, 44669), (2351, 8949), (2983, 7053)]