21141148

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 45472000

約数和(自身を除く): 24330852

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 532, 686, 811, 931, 1372, 1622, 1862, 3244, 3724, 5677, 6517, 11354, 13034, 15409, 22708, 26068, 30818, 39739, 61636, 79478, 107863, 158956, 215726, 278173, 431452, 556346, 755041, 1112692, 1510082, 3020164, 5285287, 10570574, 21141148]

約数ペア:

[(1, 21141148), (2, 10570574), (4, 5285287), (7, 3020164), (14, 1510082), (19, 1112692), (28, 755041), (38, 556346), (49, 431452), (76, 278173), (98, 215726), (133, 158956), (196, 107863), (266, 79478), (343, 61636), (532, 39739), (686, 30818), (811, 26068), (931, 22708), (1372, 15409), (1622, 13034), (1862, 11354), (3244, 6517), (3724, 5677)]