21318153

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9721}}^1$

素因数の和:9784

約数の個数: 16

約数和(自身を含む): 30799296

約数和(自身を除く): 9481143

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9721, 29163, 165257, 418003, 495771, 1254009, 7106051, 21318153]

約数ペア:

[(1, 21318153), (3, 7106051), (17, 1254009), (43, 495771), (51, 418003), (129, 165257), (731, 29163), (2193, 9721)]