21494438

素因数分解:

$2^1\times 7^3\times {\mathrm{31333}}^1$

素因数の和:31356

約数の個数: 16

約数和(自身を含む): 37600800

約数和(自身を除く): 16106362

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 31333, 62666, 219331, 438662, 1535317, 3070634, 10747219, 21494438]

約数ペア:

[(1, 21494438), (2, 10747219), (7, 3070634), (14, 1535317), (49, 438662), (98, 219331), (343, 62666), (686, 31333)]