19402988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2549}}^1$

素因数の和:2737

約数の個数: 24

約数和(自身を含む): 37270800

約数和(自身を除く): 17867812

約数列:

[1, 2, 4, 11, 22, 44, 173, 346, 692, 1903, 2549, 3806, 5098, 7612, 10196, 28039, 56078, 112156, 440977, 881954, 1763908, 4850747, 9701494, 19402988]

約数ペア:

[(1, 19402988), (2, 9701494), (4, 4850747), (11, 1763908), (22, 881954), (44, 440977), (173, 112156), (346, 56078), (692, 28039), (1903, 10196), (2549, 7612), (3806, 5098)]