21007084

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5641}}^1$

素因数の和:5678

約数の個数: 36

約数和(自身を含む): 45023160

約数和(自身を除く): 24016076

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5641, 11282, 22564, 39487, 78974, 107179, 157948, 214358, 276409, 428716, 552818, 750253, 1105636, 1500506, 3001012, 5251771, 10503542, 21007084]

約数ペア:

[(1, 21007084), (2, 10503542), (4, 5251771), (7, 3001012), (14, 1500506), (19, 1105636), (28, 750253), (38, 552818), (49, 428716), (76, 276409), (98, 214358), (133, 157948), (196, 107179), (266, 78974), (532, 39487), (931, 22564), (1862, 11282), (3724, 5641)]