215719084

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{405487}}^1$

素因数の和:405517

約数の個数: 24

約数和(自身を含む): 454146560

約数和(自身を除く): 238427476

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 405487, 810974, 1621948, 2838409, 5676818, 7704253, 11353636, 15408506, 30817012, 53929771, 107859542, 215719084]

約数ペア:

[(1, 215719084), (2, 107859542), (4, 53929771), (7, 30817012), (14, 15408506), (19, 11353636), (28, 7704253), (38, 5676818), (76, 2838409), (133, 1621948), (266, 810974), (532, 405487)]