2047995

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 3605472

約数和(自身を除く): 1557477

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 641, 1065, 1923, 3195, 3205, 5769, 9615, 28845, 45511, 136533, 227555, 409599, 682665, 2047995]

約数ペア:

[(1, 2047995), (3, 682665), (5, 409599), (9, 227555), (15, 136533), (45, 45511), (71, 28845), (213, 9615), (355, 5769), (639, 3205), (641, 3195), (1065, 1923)]