19971796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1607}}^1$

素因数の和:1863

約数の個数: 24

約数和(自身を含む): 37820160

約数和(自身を除く): 17848364

約数列:

[1, 2, 4, 13, 26, 52, 239, 478, 956, 1607, 3107, 3214, 6214, 6428, 12428, 20891, 41782, 83564, 384073, 768146, 1536292, 4992949, 9985898, 19971796]

約数ペア:

[(1, 19971796), (2, 9985898), (4, 4992949), (13, 1536292), (26, 768146), (52, 384073), (239, 83564), (478, 41782), (956, 20891), (1607, 12428), (3107, 6428), (3214, 6214)]