21064141

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1453}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 25590400

約数和(自身を除く): 4526259

約数列:

[1, 7, 19, 109, 133, 763, 1453, 2071, 10171, 14497, 27607, 158377, 193249, 1108639, 3009163, 21064141]

約数ペア:

[(1, 21064141), (7, 3009163), (19, 1108639), (109, 193249), (133, 158377), (763, 27607), (1453, 14497), (2071, 10171)]