18926397

素因数分解:

$3^2\times 7^3\times {\mathrm{6131}}^1$

素因数の和:6158

約数の個数: 24

約数和(自身を含む): 31886400

約数和(自身を除く): 12960003

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6131, 18393, 42917, 55179, 128751, 300419, 386253, 901257, 2102933, 2703771, 6308799, 18926397]

約数ペア:

[(1, 18926397), (3, 6308799), (7, 2703771), (9, 2102933), (21, 901257), (49, 386253), (63, 300419), (147, 128751), (343, 55179), (441, 42917), (1029, 18393), (3087, 6131)]