7980456981

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{257293}}^1$

素因数の和:257521

約数の個数: 24

約数和(自身を含む): 12436562784

約数和(自身を除く): 4456105803

約数列:

[1, 3, 7, 21, 49, 147, 211, 633, 1477, 4431, 10339, 31017, 257293, 771879, 1801051, 5403153, 12607357, 37822071, 54288823, 162866469, 380021761, 1140065283, 2660152327, 7980456981]

約数ペア:

[(1, 7980456981), (3, 2660152327), (7, 1140065283), (21, 380021761), (49, 162866469), (147, 54288823), (211, 37822071), (633, 12607357), (1477, 5403153), (4431, 1801051), (10339, 771879), (31017, 257293)]