21490098

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{511669}}^1$

素因数の和:511681

約数の個数: 16

約数和(自身を含む): 49120320

約数和(自身を除く): 27630222

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 511669, 1023338, 1535007, 3070014, 3581683, 7163366, 10745049, 21490098]

約数ペア:

[(1, 21490098), (2, 10745049), (3, 7163366), (6, 3581683), (7, 3070014), (14, 1535007), (21, 1023338), (42, 511669)]