28816991

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 33561600

約数和(自身を除く): 4744609

約数列:

[1, 7, 137, 151, 199, 959, 1057, 1393, 20687, 27263, 30049, 144809, 190841, 210343, 4116713, 28816991]

約数ペア:

[(1, 28816991), (7, 4116713), (137, 210343), (151, 190841), (199, 144809), (959, 30049), (1057, 27263), (1393, 20687)]