21435650

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4817}}^1$

素因数の和:4918

約数の個数: 24

約数和(自身を含む): 40326660

約数和(自身を除く): 18891010

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4817, 9634, 24085, 48170, 120425, 240850, 428713, 857426, 2143565, 4287130, 10717825, 21435650]

約数ペア:

[(1, 21435650), (2, 10717825), (5, 4287130), (10, 2143565), (25, 857426), (50, 428713), (89, 240850), (178, 120425), (445, 48170), (890, 24085), (2225, 9634), (4450, 4817)]