21238290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{643}}^1$

素因数の和:1023

約数の個数: 48

約数和(自身を含む): 55456128

約数和(自身を除く): 34217838

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 367, 643, 734, 1101, 1286, 1835, 1929, 2202, 3215, 3303, 3670, 3858, 5505, 5787, 6430, 6606, 9645, 11010, 11574, 16515, 19290, 28935, 33030, 57870, 235981, 471962, 707943, 1179905, 1415886, 2123829, 2359810, 3539715, 4247658, 7079430, 10619145, 21238290]

約数ペア:

[(1, 21238290), (2, 10619145), (3, 7079430), (5, 4247658), (6, 3539715), (9, 2359810), (10, 2123829), (15, 1415886), (18, 1179905), (30, 707943), (45, 471962), (90, 235981), (367, 57870), (643, 33030), (734, 28935), (1101, 19290), (1286, 16515), (1835, 11574), (1929, 11010), (2202, 9645), (3215, 6606), (3303, 6430), (3670, 5787), (3858, 5505)]