21236992

素因数分解:

$2^8\times 7^2\times {\mathrm{1693}}^1$

素因数の和:1723

約数の個数: 54

約数和(自身を含む): 49341138

約数和(自身を除く): 28104146

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1693, 1792, 3136, 3386, 6272, 6772, 11851, 12544, 13544, 23702, 27088, 47404, 54176, 82957, 94808, 108352, 165914, 189616, 216704, 331828, 379232, 433408, 663656, 758464, 1327312, 1516928, 2654624, 3033856, 5309248, 10618496, 21236992]

約数ペア:

[(1, 21236992), (2, 10618496), (4, 5309248), (7, 3033856), (8, 2654624), (14, 1516928), (16, 1327312), (28, 758464), (32, 663656), (49, 433408), (56, 379232), (64, 331828), (98, 216704), (112, 189616), (128, 165914), (196, 108352), (224, 94808), (256, 82957), (392, 54176), (448, 47404), (784, 27088), (896, 23702), (1568, 13544), (1693, 12544), (1792, 11851), (3136, 6772), (3386, 6272)]