18921904

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{38149}}^1$

素因数の和:38188

約数の個数: 20

約数和(自身を含む): 37844800

約数和(自身を除く): 18922896

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 38149, 76298, 152596, 305192, 610384, 1182619, 2365238, 4730476, 9460952, 18921904]

約数ペア:

[(1, 18921904), (2, 9460952), (4, 4730476), (8, 2365238), (16, 1182619), (31, 610384), (62, 305192), (124, 152596), (248, 76298), (496, 38149)]