19406384

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71347}}^1$

素因数の和:71372

約数の個数: 20

約数和(自身を含む): 39812184

約数和(自身を除く): 20405800

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71347, 142694, 285388, 570776, 1141552, 1212899, 2425798, 4851596, 9703192, 19406384]

約数ペア:

[(1, 19406384), (2, 9703192), (4, 4851596), (8, 2425798), (16, 1212899), (17, 1141552), (34, 570776), (68, 285388), (136, 142694), (272, 71347)]