18899414

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1187}}^1$

素因数の和:1627

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 11038186

約数列:

[1, 2, 19, 38, 419, 838, 1187, 2374, 7961, 15922, 22553, 45106, 497353, 994706, 9449707, 18899414]

約数ペア:

[(1, 18899414), (2, 9449707), (19, 994706), (38, 497353), (419, 45106), (838, 22553), (1187, 15922), (2374, 7961)]