213865911

素因数分解:

$3^2\times 7^1\times {\mathrm{499}}^1\times {\mathrm{6803}}^1$

素因数の和:7315

約数の個数: 24

約数和(自身を含む): 353808000

約数和(自身を除く): 139942089

約数列:

[1, 3, 7, 9, 21, 63, 499, 1497, 3493, 4491, 6803, 10479, 20409, 31437, 47621, 61227, 142863, 428589, 3394697, 10184091, 23762879, 30552273, 71288637, 213865911]

約数ペア:

[(1, 213865911), (3, 71288637), (7, 30552273), (9, 23762879), (21, 10184091), (63, 3394697), (499, 428589), (1497, 142863), (3493, 61227), (4491, 47621), (6803, 31437), (10479, 20409)]