28781286

素因数分解:

$2^1\times 3^1\times {\mathrm{2131}}^1\times {\mathrm{2251}}^1$

素因数の和:4387

約数の個数: 16

約数和(自身を含む): 57615168

約数和(自身を除く): 28833882

約数列:

[1, 2, 3, 6, 2131, 2251, 4262, 4502, 6393, 6753, 12786, 13506, 4796881, 9593762, 14390643, 28781286]

約数ペア:

[(1, 28781286), (2, 14390643), (3, 9593762), (6, 4796881), (2131, 13506), (2251, 12786), (4262, 6753), (4502, 6393)]