21184784

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8123}}^1$

素因数の和:8294

約数の個数: 20

約数和(自身を含む): 41302416

約数和(自身を除く): 20117632

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8123, 16246, 32492, 64984, 129968, 1324049, 2648098, 5296196, 10592392, 21184784]

約数ペア:

[(1, 21184784), (2, 10592392), (4, 5296196), (8, 2648098), (16, 1324049), (163, 129968), (326, 64984), (652, 32492), (1304, 16246), (2608, 8123)]