20981058

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499549}}^1$

素因数の和:499561

約数の個数: 16

約数和(自身を含む): 47956800

約数和(自身を除く): 26975742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499549, 999098, 1498647, 2997294, 3496843, 6993686, 10490529, 20981058]

約数ペア:

[(1, 20981058), (2, 10490529), (3, 6993686), (6, 3496843), (7, 2997294), (14, 1498647), (21, 999098), (42, 499549)]