21309512

素因数分解:

$2^3\times 7^2\times {\mathrm{54361}}^1$

素因数の和:54381

約数の個数: 24

約数和(自身を含む): 46479510

約数和(自身を除く): 25169998

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54361, 108722, 217444, 380527, 434888, 761054, 1522108, 2663689, 3044216, 5327378, 10654756, 21309512]

約数ペア:

[(1, 21309512), (2, 10654756), (4, 5327378), (7, 3044216), (8, 2663689), (14, 1522108), (28, 761054), (49, 434888), (56, 380527), (98, 217444), (196, 108722), (392, 54361)]