390921219

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{175853}}^1$

素因数の和:175891

約数の個数: 24

約数和(自身を含む): 640108560

約数和(自身を除く): 249187341

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 175853, 527559, 1582677, 2286089, 3341207, 6858267, 10023621, 20574801, 30070863, 43435691, 130307073, 390921219]

約数ペア:

[(1, 390921219), (3, 130307073), (9, 43435691), (13, 30070863), (19, 20574801), (39, 10023621), (57, 6858267), (117, 3341207), (171, 2286089), (247, 1582677), (741, 527559), (2223, 175853)]