21311416

素因数分解:

$2^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1447}}^1$

素因数の和:1723

約数の個数: 32

約数和(自身を含む): 45872640

約数和(自身を除く): 24561224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 263, 526, 1052, 1447, 1841, 2104, 2894, 3682, 5788, 7364, 10129, 11576, 14728, 20258, 40516, 81032, 380561, 761122, 1522244, 2663927, 3044488, 5327854, 10655708, 21311416]

約数ペア:

[(1, 21311416), (2, 10655708), (4, 5327854), (7, 3044488), (8, 2663927), (14, 1522244), (28, 761122), (56, 380561), (263, 81032), (526, 40516), (1052, 20258), (1447, 14728), (1841, 11576), (2104, 10129), (2894, 7364), (3682, 5788)]