21287193

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3511}}^1$

素因数の和:3604

約数の個数: 16

約数和(自身を含む): 29669376

約数和(自身を除く): 8382183

約数列:

[1, 3, 43, 47, 129, 141, 2021, 3511, 6063, 10533, 150973, 165017, 452919, 495051, 7095731, 21287193]

約数ペア:

[(1, 21287193), (3, 7095731), (43, 495051), (47, 452919), (129, 165017), (141, 150973), (2021, 10533), (3511, 6063)]