19430397

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9949}}^1$

素因数の和:9993

約数の個数: 24

約数和(自身を含む): 33113600

約数和(自身を除く): 13683203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 9949, 29847, 69643, 89541, 208929, 308419, 626787, 925257, 2158933, 2775771, 6476799, 19430397]

約数ペア:

[(1, 19430397), (3, 6476799), (7, 2775771), (9, 2158933), (21, 925257), (31, 626787), (63, 308419), (93, 208929), (217, 89541), (279, 69643), (651, 29847), (1953, 9949)]