21276018

素因数分解:

$2^1\times 3^2\times {\mathrm{331}}^1\times {\mathrm{3571}}^1$

素因数の和:3910

約数の個数: 24

約数和(自身を含む): 46250256

約数和(自身を除く): 24974238

約数列:

[1, 2, 3, 6, 9, 18, 331, 662, 993, 1986, 2979, 3571, 5958, 7142, 10713, 21426, 32139, 64278, 1182001, 2364002, 3546003, 7092006, 10638009, 21276018]

約数ペア:

[(1, 21276018), (2, 10638009), (3, 7092006), (6, 3546003), (9, 2364002), (18, 1182001), (331, 64278), (662, 32139), (993, 21426), (1986, 10713), (2979, 7142), (3571, 5958)]