21419643

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59999}}^1$

素因数の和:60026

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 13140357

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59999, 179997, 419993, 1019983, 1259979, 3059949, 7139881, 21419643]

約数ペア:

[(1, 21419643), (3, 7139881), (7, 3059949), (17, 1259979), (21, 1019983), (51, 419993), (119, 179997), (357, 59999)]