2019489974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{405683}}^1$

素因数の和:405835

約数の個数: 16

約数和(自身を含む): 3213017280

約数和(自身を除く): 1193527306

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4978, 405683, 811366, 7707977, 15415954, 53144473, 106288946, 1009744987, 2019489974]

約数ペア:

[(1, 2019489974), (2, 1009744987), (19, 106288946), (38, 53144473), (131, 15415954), (262, 7707977), (2489, 811366), (4978, 405683)]