21088017

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1879}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 32260800

約数和(自身を除く): 11172783

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 1879, 3741, 5637, 11223, 16911, 54491, 80797, 163473, 242391, 490419, 727173, 2343113, 7029339, 21088017]

約数ペア:

[(1, 21088017), (3, 7029339), (9, 2343113), (29, 727173), (43, 490419), (87, 242391), (129, 163473), (261, 80797), (387, 54491), (1247, 16911), (1879, 11223), (3741, 5637)]