21130206

素因数分解:

$2^1\times 3^1\times {\mathrm{431}}^1\times {\mathrm{8171}}^1$

素因数の和:8607

約数の個数: 16

約数和(自身を含む): 42363648

約数和(自身を除く): 21233442

約数列:

[1, 2, 3, 6, 431, 862, 1293, 2586, 8171, 16342, 24513, 49026, 3521701, 7043402, 10565103, 21130206]

約数ペア:

[(1, 21130206), (2, 10565103), (3, 7043402), (6, 3521701), (431, 49026), (862, 24513), (1293, 16342), (2586, 8171)]