20858229

素因数分解:

$3^4\times 7^1\times {\mathrm{36787}}^1$

素因数の和:36806

約数の個数: 20

約数和(自身を含む): 35610784

約数和(自身を除く): 14752555

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36787, 110361, 257509, 331083, 772527, 993249, 2317581, 2979747, 6952743, 20858229]

約数ペア:

[(1, 20858229), (3, 6952743), (7, 2979747), (9, 2317581), (21, 993249), (27, 772527), (63, 331083), (81, 257509), (189, 110361), (567, 36787)]