19910500791

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1\times {\mathrm{327923}}^1$

素因数の和:328510

約数の個数: 16

約数和(自身を含む): 27314757504

約数和(自身を除く): 7404256713

約数列:

[1, 3, 37, 111, 547, 1641, 20239, 60717, 327923, 983769, 12133151, 36399453, 179373881, 538121643, 6636833597, 19910500791]

約数ペア:

[(1, 19910500791), (3, 6636833597), (37, 538121643), (111, 179373881), (547, 36399453), (1641, 12133151), (20239, 983769), (60717, 327923)]