21121836

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{19777}}^1$

素因数の和:19873

約数の個数: 24

約数和(自身を含む): 49840560

約数和(自身を除く): 28718724

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 1068, 19777, 39554, 59331, 79108, 118662, 237324, 1760153, 3520306, 5280459, 7040612, 10560918, 21121836]

約数ペア:

[(1, 21121836), (2, 10560918), (3, 7040612), (4, 5280459), (6, 3520306), (12, 1760153), (89, 237324), (178, 118662), (267, 79108), (356, 59331), (534, 39554), (1068, 19777)]