21467385

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9001}}^1$

素因数の和:9065

約数の個数: 24

約数和(自身を含む): 37916424

約数和(自身を除く): 16449039

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 9001, 27003, 45005, 81009, 135015, 405045, 477053, 1431159, 2385265, 4293477, 7155795, 21467385]

約数ペア:

[(1, 21467385), (3, 7155795), (5, 4293477), (9, 2385265), (15, 1431159), (45, 477053), (53, 405045), (159, 135015), (265, 81009), (477, 45005), (795, 27003), (2385, 9001)]