19908849

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{2677}}^1$

素因数の和:2784

約数の個数: 16

約数和(自身を含む): 27679808

約数和(自身を除く): 7770959

約数列:

[1, 3, 37, 67, 111, 201, 2479, 2677, 7437, 8031, 99049, 179359, 297147, 538077, 6636283, 19908849]

約数ペア:

[(1, 19908849), (3, 6636283), (37, 538077), (67, 297147), (111, 179359), (201, 99049), (2479, 8031), (2677, 7437)]