28491029

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 33196800

約数和(自身を除く): 4705771

約数列:

[1, 7, 113, 181, 199, 791, 1267, 1393, 20453, 22487, 36019, 143171, 157409, 252133, 4070147, 28491029]

約数ペア:

[(1, 28491029), (7, 4070147), (113, 252133), (181, 157409), (199, 143171), (791, 36019), (1267, 22487), (1393, 20453)]