20471235

素因数分解:

$3^1\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{1301}}^1$

素因数の和:2358

約数の個数: 16

約数和(自身を含む): 32810400

約数和(自身を除く): 12339165

約数列:

[1, 3, 5, 15, 1049, 1301, 3147, 3903, 5245, 6505, 15735, 19515, 1364749, 4094247, 6823745, 20471235]

約数ペア:

[(1, 20471235), (3, 6823745), (5, 4094247), (15, 1364749), (1049, 19515), (1301, 15735), (3147, 6505), (3903, 5245)]