21528892

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69899}}^1$

素因数の和:69921

約数の個数: 24

約数和(自身を含む): 46972800

約数和(自身を除く): 25443908

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69899, 139798, 279596, 489293, 768889, 978586, 1537778, 1957172, 3075556, 5382223, 10764446, 21528892]

約数ペア:

[(1, 21528892), (2, 10764446), (4, 5382223), (7, 3075556), (11, 1957172), (14, 1537778), (22, 978586), (28, 768889), (44, 489293), (77, 279596), (154, 139798), (308, 69899)]