1720887

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{227}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 2779776

約数和(自身を除く): 1058889

約数列:

[1, 3, 7, 19, 21, 57, 133, 227, 361, 399, 681, 1083, 1589, 2527, 4313, 4767, 7581, 12939, 30191, 81947, 90573, 245841, 573629, 1720887]

約数ペア:

[(1, 1720887), (3, 573629), (7, 245841), (19, 90573), (21, 81947), (57, 30191), (133, 12939), (227, 7581), (361, 4767), (399, 4313), (681, 2527), (1083, 1589)]