21091300

素因数分解:

$2^2\times 5^2\times {\mathrm{210913}}^1$

素因数の和:210927

約数の個数: 18

約数和(自身を含む): 45768338

約数和(自身を除く): 24677038

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210913, 421826, 843652, 1054565, 2109130, 4218260, 5272825, 10545650, 21091300]

約数ペア:

[(1, 21091300), (2, 10545650), (4, 5272825), (5, 4218260), (10, 2109130), (20, 1054565), (25, 843652), (50, 421826), (100, 210913)]