21860368

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80369}}^1$

素因数の和:80394

約数の個数: 20

約数和(自身を含む): 44846460

約数和(自身を除く): 22986092

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80369, 160738, 321476, 642952, 1285904, 1366273, 2732546, 5465092, 10930184, 21860368]

約数ペア:

[(1, 21860368), (2, 10930184), (4, 5465092), (8, 2732546), (16, 1366273), (17, 1285904), (34, 642952), (68, 321476), (136, 160738), (272, 80369)]