21144496

素因数分解:

$2^4\times {\mathrm{971}}^1\times {\mathrm{1361}}^1$

素因数の和:2340

約数の個数: 20

約数和(自身を含む): 41039784

約数和(自身を除く): 19895288

約数列:

[1, 2, 4, 8, 16, 971, 1361, 1942, 2722, 3884, 5444, 7768, 10888, 15536, 21776, 1321531, 2643062, 5286124, 10572248, 21144496]

約数ペア:

[(1, 21144496), (2, 10572248), (4, 5286124), (8, 2643062), (16, 1321531), (971, 21776), (1361, 15536), (1942, 10888), (2722, 7768), (3884, 5444)]