21302253

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1889}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 35380800

約数和(自身を除く): 14078547

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 1889, 3759, 5667, 11277, 13223, 17001, 39669, 119007, 338131, 1014393, 2366917, 3043179, 7100751, 21302253]

約数ペア:

[(1, 21302253), (3, 7100751), (7, 3043179), (9, 2366917), (21, 1014393), (63, 338131), (179, 119007), (537, 39669), (1253, 17001), (1611, 13223), (1889, 11277), (3759, 5667)]