211621851

素因数分解:

$3^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{8863}}^1$

素因数の和:9255

約数の個数: 24

約数和(自身を含む): 350305280

約数和(自身を除く): 138683429

約数列:

[1, 3, 7, 9, 21, 63, 379, 1137, 2653, 3411, 7959, 8863, 23877, 26589, 62041, 79767, 186123, 558369, 3359077, 10077231, 23513539, 30231693, 70540617, 211621851]

約数ペア:

[(1, 211621851), (3, 70540617), (7, 30231693), (9, 23513539), (21, 10077231), (63, 3359077), (379, 558369), (1137, 186123), (2653, 79767), (3411, 62041), (7959, 26589), (8863, 23877)]