19854416

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2467}}^1$

素因数の和:2978

約数の個数: 20

約数和(自身を含む): 38560032

約数和(自身を除く): 18705616

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2467, 4024, 4934, 8048, 9868, 19736, 39472, 1240901, 2481802, 4963604, 9927208, 19854416]

約数ペア:

[(1, 19854416), (2, 9927208), (4, 4963604), (8, 2481802), (16, 1240901), (503, 39472), (1006, 19736), (2012, 9868), (2467, 8048), (4024, 4934)]