676142721

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{439339}}^1$

素因数の和:439370

約数の個数: 20

約数和(自身を含む): 1063202800

約数和(自身を除く): 387060079

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 439339, 1318017, 3954051, 8347441, 11862153, 25042323, 35586459, 75126969, 225380907, 676142721]

約数ペア:

[(1, 676142721), (3, 225380907), (9, 75126969), (19, 35586459), (27, 25042323), (57, 11862153), (81, 8347441), (171, 3954051), (513, 1318017), (1539, 439339)]